Duff, Warren, 1904-1973 (Autor Personal)

I've got your number [MP] 1934: credits (screenplay, Warren Duff)

Theatre, film and television biographies, 1979 (Warren Duff; b. 1904 d. 1973)

Intl. motion picture alm., 1939/40 (Warren B. Duff; b. May 17, 1904; writer)

IMDB, Mar. 31, 2011 (Warren Duff; Warren B. Duff; b. in San Francisco, Calif.; d. Aug. 5, 1973 in Los Angeles, Calif.; screenwriter, producer)

Warren Duff (1904-1973) was an American screenwriter and film producer.