APA
Combs Gerald F, . (2009). Vitamins: Fundamental Aspects In Nutrition And Health, 2Nd Edition. London: Academic Press.
Chicago
Combs Gerald F, . 2009. Vitamins: Fundamental Aspects In Nutrition And Health, 2Nd Edition. London: Academic Press.
Harvard
Combs Gerald F, . (2009). Vitamins: Fundamental Aspects In Nutrition And Health, 2Nd Edition. London: Academic Press.
MLA
Combs Gerald F, . Vitamins: Fundamental Aspects In Nutrition And Health, 2Nd Edition. London: Academic Press. 2009.