APA (7th ed.) Citation

(2010). Alex Katz - Portraits. National Portrait Gallery [u.a.].

Chicago Style (17th ed.) Citation

Alex Katz - Portraits. London: National Portrait Gallery [u.a.], 2010.

MLA (9th ed.) Citation

Alex Katz - Portraits. National Portrait Gallery [u.a.], 2010.

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