Cita APA (7th ed.)
Whitney, E., & Rolfes, S. R. (2008). Understanding nutrition (11th ed.). Thomson.
Cita Chicago (17th ed.)
Whitney, Ellie, i Sharon Rady Rolfes. Understanding Nutrition. 11th ed. Australia: Thomson, 2008.
Cita MLA (9th ed.)
Whitney, Ellie, i Sharon Rady Rolfes. Understanding Nutrition. 11th ed. Thomson, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.