Gaya APA

Watkins, C, J. (2018). Pharmacology Clear & Simple : A Guide to Drug Classifications and Dosage Calculation (3rd.ed). Philadelphia: F.A Davis.

Gaya MLA

Watkins, Cynthia, J. "Pharmacology Clear & Simple : A Guide to Drug Classifications and Dosage Calculation". 3rd.ed Philadelphia: F.A Davis, 2018. Text.