Secret knowledge :
rediscovering the lost techniques of the Old Masters /
David Hockney.

APA Citation

Hockney, D. (2001). Secret knowledge: rediscovering the lost techniques of the Old Masters. New York: Viking Studio.

MLA Citation

Hockney, David. Secret Knowledge: Rediscovering the Lost Techniques of the Old Masters. New York: Viking Studio, 2001.

Warning: These citations may not always be complete (especially for serials).