LAS VEGAS, DEC. 20 -- The NCAA's letter-of-inquiry to the University of Nevada-Las Vegas was made public today, and the contents are even more potentially condemning than what was expected. The Runnin' Rebels basketball program is accused of 29 rule violations, 10 of which relate to the school's 1986 recruitment of New York City prep star Lloyd Daniels.

The letter includes allegations that a scholarship fund was mismanaged by an assistant coach, that payments and gifts were given to players and recruits and that university officials lied to NCAA investigators and altered official documents.

Seven of the charges claim school officials or boosters acted "contrary to the principles of ethical conduct," and UNLV was accused of a "lack of institutional control" relating to the Daniels case and to the handling of bills run up by players on road trips.

The NCAA also alleges that a booster gave a former player $200 and a hotel room to sign an affidavit recanting charges he had made against the program. UNLV is accused of rule violations in recruiting players other than Daniels, including allegations that recruits were given free plane tickets, basketball shoes, meals and other incidentals during their campus visits.

The 43-page letter was released by the University of Nevada system office in Reno. The system's legal counsel, Donald Klasic, withheld the names of those implicated for what he said were privacy considerations. Sources close to the situation said UNLV Coach Jerry Tarkanian is not heavily involved in the charges, but assistant coach Tim Grgurich and former assistant Mark Warkentien are mentioned often.

Also apparently involved in the charges are Las Vegas advertising executive and White House aide Sig Rogich and reputed organized crime associate Richie Perry. UNLV officials stuck to Wednesday's vow of refusing to comment on the allegations, although Athletic Director Dennis Finfrock again said the university will "cooperate fully" with the NCAA in trying to resolve the matter.

Tarkanian and Grgurich declined to comment today; Warkentein and UNLV President Robert Maxson were not available. Yesterday Maxson had said he would do whatever is necessary to repond to the allegations. The school -- which already is barred from postseason play in 1992 and live TV during the 1991-92 season -- has at least 60 days to respond to the charges, and indications are that it will oppose at least some of them when it comes before the NCAA infractions committee.

The NCAA charges that UNLV acted improperly in permitting Warkentein to become Daniels's legal guardian. Warkentein is accused of providing "numerous improper living, travel and educational expenses to the young man" -- including, sources said, a motor scooter and, later, an automobile.

The NCAA says the university allowed Warkentein to proceed with his attempts to become Daniels's legal guardian despite instructions from the Big West Conference to seek an official interpretation on the arrangement from the NCAA. University officials have contended that the gifts ceased when the arrangement was ruled improper by the NCAA, but the letter claims otherwise.

The letter also alleges that a UNLV booster paid Daniels's bail after he was arrested in a local crack house on drug charges and that Warkentein gave $500 to a woman to settle a traffic accident in which Daniels was involved -- reportedly in a leased car he obtained first through his employment at R&R Advertising, Rogich's firm, and later with the help of Perry. There is no connection between Rogich and Perry.

In a statement he released Wednesday, Rogich said Daniels was "just one of more than 100 non-student-athletes and student-athletes from UNLV and other universities who have either interned, worked part-time during school or worked during summer break at R&R Advertising."

He said Daniels never had been given "special consideration or . . . special treatment" at the firm, which he insisted was in "full compliance" with NCAA rules in its dealings with student-athletes.

Rogich declined to comment further. A source close to the situation said Daniels had access to a car while he worked the summer job, but that other students too were offered the same privilege by Rogich.

The same source said Grgurich was the assistant coach involved in the alleged mismanagement of the scholarship fund. "When the players would go to pick up their scholarship money, {Grgurich} would go with them," the source said.