Gaya APA

Ansel, H, C, A, , P, G. (1990). Pharmaceutical Dosage Forms And Drug Delivery Systems (5). Philadelphia: Lippincott Williams and Wilkins.

Gaya MLA

Ansel, Howard, C., And, , Popovich,Nicholas, G.. "Pharmaceutical Dosage Forms And Drug Delivery Systems". 5 Philadelphia: Lippincott Williams and Wilkins, 1990. Text.