Gaya APA

al., R, R, B, E. (2009). Handbook of Nonprescription Drugs : An Interactive Approach to Self-Care 6th Edition (6). Washington DC: American Pharmacists Association - Lexicomp.

Gaya MLA

al., Rosemary, R., Berardi,, Et. "Handbook of Nonprescription Drugs : An Interactive Approach to Self-Care 6th Edition". 6 Washington DC: American Pharmacists Association - Lexicomp, 2009. Koleksi Elektronik.