WASHINGTON, March 24--President Eisenhower and British Prime Minister Harold Macmillan won French and West German approval today for their formula for offering Russia a summit conference this summer.

Diplomatic informants who disclosed this said the four governments would send separate but similar notes to the Kremlin within a few days. In effect, they will offer Soviet Premier Nikita Khrushchev a heads of government session on German problems.

Authorities said, however, that Eisenhower has given no pledge he would go to a summit meeting if the foreign ministers fail to ease tensions. The actual language of the U.S. note, it was said, will follow closely that in Eisenhower's speech eight days ago. He then promised to consider a summit meeting if developments justify it.

It was also learned that the foreign ministers of the Western Big Three and West Germany plan to meet in Paris April 20, or possibly a week later, to complete strategy for the talks with the Soviet Union at Geneva.

Tibetan Revolt Quelled

NEW DELHI, India, March 24--Peace was restored in Lhasa, the two-mile high capital of Tibet. Amid indications that Red China's troops had stemmed the weekend revolt, there was speculation that guerrilla warfare might persist in the countryside.

Roundabout advice to Tibetans in Kalimpong, an Indian trading center on Tibet's frontier, said Lhasa was quiet, though tense. One unverified report said 300 Red troops and 50 to 60 Tibetans were killed. The battle was set off Friday by Tibetan fears that the Communist overlords planned to kidnap the Dalai Lama, the 23-year-old king called "the living Buddha."

Kalimpong heard that the Dalai Lama is safe, though his whereabouts remained a mystery. Dispatches from Gangtok said some Tibetans are en route to New Delhi to plead with Prime Minister Nehru for active intervention. High Chinese Nationalist officials said both sides had ordered up reinforcements in this gravest outbreak of hostilities since Red Chna took over Tibet eight years ago.

AEC Denies Secrecy

WASHINGTON, March 24--The Atmoic Energy Commission denied vigorously today that it has bottled up any information on radioactive fallout. AEC Chairman John A. McCone called also for a "government-wide review" of information policy on the sometimes deadly aftermath of nuclear explosions. He suggested a meeting of all agencies concerned be held late in May.