APA-referens (7:e uppl.)

ebrary, Inc, Belasco, W. J., & Horowitz, R. (2009). Food chains: From farmyard to shopping cart. University of Pennsylvania Press.

Chicago-referens (17:e uppl.)

ebrary, Inc, Warren James Belasco, och Roger Horowitz. Food Chains: From Farmyard to Shopping Cart. Philadelphia: University of Pennsylvania Press, 2009.

MLA-referens (9:e uppl.)

ebrary, Inc, et al. Food Chains: From Farmyard to Shopping Cart. University of Pennsylvania Press, 2009.