APA (7th ed.) Citation

O'Brian, P. (2003). Picasso. Harper Collins Publishers.

Chicago Style (17th ed.) Citation

O'Brian, Patrick. Picasso. London: Harper Collins Publishers, 2003.

MLA (9th ed.) Citation

O'Brian, Patrick. Picasso. Harper Collins Publishers, 2003.

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