APA
Guthrie H., . (1986). Introduction to nutrition. Toronto: Times Mirror/Mosby College Publishing.
Chicago
Guthrie Helen, . 1986. Introduction to nutrition. Toronto: Times Mirror/Mosby College Publishing.
Harvard
Guthrie H., . (1986). Introduction to nutrition. Toronto: Times Mirror/Mosby College Publishing.
MLA
Guthrie Helen, . Introduction to nutrition. Toronto: Times Mirror/Mosby College Publishing. 1986.