Gaya APA

Allen, L, V. et al (2005). Ansel's Pharmaceuticals Dosage Forms and Drug Delivery Systems (8th.ed). Philadelphia: Lippincot William & Wilkins.

Gaya MLA

Allen, Loyd, V. et al. "Ansel's Pharmaceuticals Dosage Forms and Drug Delivery Systems". 8th.ed Philadelphia: Lippincot William & Wilkins, 2005. Text.