Alan Bullock, 89, author, historian

LONDON -- Alan Bullock, distinguished historian and author of an important postwar biography of Adolf Hitler, died Monday at age 89, Oxford University said.

Mr. Bullock's "Hitler: A Study in Tyranny," was published in 1952 and revised in 1964. The book made his reputation, and, according to an obituary in The Times of London, the book sold 3 million copies. His other most famous work was a three-volume biography of Ernest Bevin, the union leader and Labour Party politician.

Mr. Bullock was a founder of St. Catherine's College at Oxford and was its master from 1960 to 1980. Sir Colin Lucas, vice chancellor of Oxford University, said Mr. Bullock was "a gifted academic whose works continue to be read by new generations of historians."Mr. Bullock was born in 1914, the only child of a maid and gardener who became a Unitarian minister. Mr. Bullock won a scholarship to Oxford's Wadham College. He worked for Winston Churchill in writing "A History of the English Speaking Peoples" and was a correspondent for the British Broadcasting Corp.