Gaya APA
Combs, G, F. (1998).
The Vitamins: Fundamental Aspects In Nutrition and Health 2nd Ed. (2nd Ed.).
Califoria:
Academic Press Inc.
Gaya MLA
Combs, Gerald, F..
"The Vitamins: Fundamental Aspects In Nutrition and Health 2nd Ed.".
2nd Ed.
Califoria:
Academic Press Inc,
1998.
Text.