OKLAHOMA CITY, AUG. 18 -- Barry Switzer says in his autobiography that he resigned as Oklahoma football coach after a meeting during which he was accused of once being in a room in which drugs were used and of gambling on college football, including the Sooners.

In "Bootlegger's Boy," Switzer writes that he stepped down six days after meeting with former interim president David Swank and other school officials. Excerpts from the book, which is scheduled to reach stores in September, were printed today in the Daily Oklahoman.

Switzer writes that at the meeting in June 1989, Swank told him he had information that Switzer had been in a Las Vegas hotel room in 1983 where cocaine was used, that he had bet on games and manipulated the drug testing of Sooners players. Some of the information came from the U.S. attorney's office in Oklahoma City, Swank told Switzer.

The former coach writes that none of the allegations is true, but he realized after the meeting that his career at Oklahoma was over.

"The publicity from my coming out with my side of the story would doom me," Switzer writes.

Swank declined to comment. "Until I really see what the book says, it's hard to make any comment," he said.

Switzer's resignation on June 19, 1989, came after Oklahoma was placed on NCAA probation and only months after some Sooners players were involved in a rape, a cocaine sale and a shooting.

One of those arrested and sent to prison was quarterback Charles Thompson, whom Switzer says tested positive for cocaine use twice during 1988 and spent the summer prior to the '88 season at a rehabilitation center.

In the book, written by Switzer and Bud Shrake with a foreword by Penn State Coach Joe Paterno, the 16-year head coach discusses numerous topics, including his own early days and the careers of a number of former players and assistant coaches.

Among the players, Switzer discusses linebacker Brian Bosworth, calling him "one of the greatest players ever to play for the University of Oklahoma." But, he writes: "I have some problems with this guy you call 'The Boz.'

"The Boz was an {expletive} who strutted around Norman like he owned the place, both stiffing and intimidating people," Switzer writes.

Switzer writes that his father, a bootlegger, was shot in the chest by a jealous girlfriend and that both died in a car accident as she drove him to a hospital.