APA Style

GABY, Alan R.. (2006). A-z guide to drug-herb-vitamin interactions, revised and expanded 2nd edition . : .

Chicago Style

GABY, Alan R.. A-z guide to drug-herb-vitamin interactions, revised and expanded 2nd edition. : , 2006. Text.

MLA Style

GABY, Alan R.. A-z guide to drug-herb-vitamin interactions, revised and expanded 2nd edition. : , 2006. Text.

Turabian Style

GABY, Alan R.. A-z guide to drug-herb-vitamin interactions, revised and expanded 2nd edition. : , 2006. Print.