MOSCOW, OCT. 10 -- The Soviet Communist Party leadership left the responsibility for the choice of an economic reform program to President Mikhail Gorbachev today after a bitter two-day debate between conservatives and radicals.

The party's policy-making Central Committee, meeting for its traditional fall session, endorsed the idea of a shift to a market-type economy from the present system of central planning. But it failed to make any recommendation to the Supreme Soviet, or national legislature, on which of several variants to adopt.

The failure of the Central Committee to take a clear stand on how to resolve the Soviet Union's growing economic crisis reflected the sharp decline in the party's authority over the past few years. Until last year, the Central Committee was widely regarded as the seat of ultimate power in the country, with the right to impose its will on 17 million Communist Party members.

According to the official Tass news agency, several speakers at the party session expressed skepticism about the proposed switch to a market economy but were not able to block it outright. Conservatives denounced a plan, drawn up by a commission appointed by Gorbachev and Russian President Boris Yeltsin, to create the framework of a market system within 500 days by selling off state property.

"The draft program for the transition to a market economy is the first-class funeral of socialism and communism," said a member of the party's control commission, V. Chukov. Another conservative, Leningrad Communist Party chief Boris Gidaspov, suggested that the proposed reforms be put to a referendum.

The Supreme Soviet also failed last month to choose between the radical 500-Day Plan and a more gradual approach favored by Prime Minister Nikolai Ryzhkov that would retain many state controls over the economy. Instead, it called on Gorbachev to come up with his own reform program by next Monday. The Supreme Soviet's chairman, Anatoly Lukyanov, told the legislators today that Gorbachev's plan would be ready for submission on Monday.

At a news conference today, the party's deputy general secretary, Vladimir Ivashko, denied that the party had abdicated its responsibility by refusing to endorse one of the rival programs. He said it would be wrong for the Central Committee "to act as if it were a branch of the Supreme Soviet."

Asked about calls by opposition politicians for the formation of a coalition government to push through the market-oriented reforms, Ivashko said he could not rule out such a possibility in the long term.

"It is generally accepted in the world that several parties can create a majority in parliament and a government. We have no such situation here today. But it is ripening, and apparently in some time we can come to that," he said.

In a separate development that reflected the breakdown of traditional party authority, four senior KGB officers called for the removal of all Communist Party cells in the security service and the Interior Ministry. A letter published in the Communist youth newspaper Komsomolskaya Pravda said the KGB remains "a terrible weapon in the hands of the Communist Party leadership in the fight against its own people."

The signers of the letter included the deputy head of the KGB's "constitutional protection" department, which replaced a department that had responsibility for keeping track of dissenters.

{Meanwhile, Gorbachev issued a presidential decree today ordering all major Soviet cities to hold parades Nov. 7 on the anniversary of the 1918 Bolshevik Revolution, the Associated Press reported. The decree was in response to calls by liberals, including the mayors of Moscow and Leningrad, for a boycott of the traditional celebrations to protest the economic crisis.}