APA (7th ed.) Citation

Hockney, D. (2001). Secret knowledge : rediscovering the lost techniques of the old masters / David Hockney: Rediscovering the lost techniques of the old masters. Thames & Hudson.

Chicago Style (17th ed.) Citation

Hockney, David. Secret Knowledge : Rediscovering the Lost Techniques of the Old Masters / David Hockney: Rediscovering the Lost Techniques of the Old Masters. London: Thames & Hudson, 2001.

MLA (9th ed.) Citation

Hockney, David. Secret Knowledge : Rediscovering the Lost Techniques of the Old Masters / David Hockney: Rediscovering the Lost Techniques of the Old Masters. Thames & Hudson, 2001.

Warning: These citations may not always be 100% accurate.