Cita APA (7th ed.)
Guthrie, H. A. (1979). Introductory nutrition (4th ed.). The C. V. mosby Co..
Cita Chicago (17th ed.)
Guthrie, Helen Andrews. Introductory Nutrition. 4th ed. Saint loius: The C. V. mosby Co., 1979.
Cita MLA (9th ed.)
Guthrie, Helen Andrews. Introductory Nutrition. 4th ed. The C. V. mosby Co., 1979.
Atenció: Aquestes cites poden no estar 100% correctes.