APA (7th ed.) Citation

Anderson, K., & Copeland, G. (2014). Who was Andy Warhol? Penguin Workshop.

Chicago Style (17th ed.) Citation

Anderson, Kirsten, and Gregory Copeland. Who Was Andy Warhol? New York: Penguin Workshop, 2014.

MLA (9th ed.) Citation

Anderson, Kirsten, and Gregory Copeland. Who Was Andy Warhol? Penguin Workshop, 2014.