APA (7th ed.) Citation

Steig, W. (2010). Shrek! ([20th anniversary ed.].). Farrar Straus Giroux.

Chicago Style (17th ed.) Citation

Steig, William. Shrek! [20th anniversary ed.]. New York: Farrar Straus Giroux, 2010.

MLA (8th ed.) Citation

Steig, William. Shrek! [20th anniversary ed.]. Farrar Straus Giroux, 2010.

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