Leone, Sergio, 1929-1989 (Personal Name)

Lambert, G. Les Bons, les sales, les méchants ... 1976.

His Conversations avec Sergio Leone, c1987: p. 9 (je suis né le 3 janvier 1929)

LC manual auth. cd. (hdg.: Leone, Sergio, 1921- )

Tutto il cinema di Sergio Leone, 1999: t.p. (Sergio Leone) front flap (b. 1929; d. 1989)

Internet Movie Database, viewed Jan. 18, 2005 (Sergio Leone; sometimes credited as: Bob Robertson, Sergio; film director, writer, producer)