D. Sylvester, The Brutality of Fact : Interviews with Francis Bacon, p.174, 1987.

, See Memoirs of the Blind -The Self-Portrait and Other Ruins, 1993.

A. Warhol, G. Interview, and . Berg, Andy Warhol : My True Story, I'll Be Your Mirror: The Selected Interviews with Andy, p.90, 1996.