Gaya APA
M.D., H, W, G. (1998).
Vitamins, Herbs, Minerals & Suplements The Complete Guide (Cetakan II).
New York:
Fisher Books.
Gaya MLA
M.D., H., Winter, Griffith,.
"Vitamins, Herbs, Minerals & Suplements The Complete Guide".
Cetakan II
New York:
Fisher Books,
1998.
Text.