Kowtaluk, H. (1997). Discovering food and nutrition (5th ed.). Glencoe/McGraw-Hill.
Cita Chicago (17th ed.)Kowtaluk, Helen. Discovering Food and Nutrition. 5th ed. New York, N.Y: Glencoe/McGraw-Hill, 1997.
Cita MLA (9th ed.)Kowtaluk, Helen. Discovering Food and Nutrition. 5th ed. Glencoe/McGraw-Hill, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.