Gaya APA

Allen, L, V. et al (2011). Ansel’s Pharmaceutical Dosage Forms and Drug Delivery Systems (9th ed.). New York: Lippincott Williams & Wilkins.

Gaya MLA

Allen, Loyd, V.. et al. "Ansel’s Pharmaceutical Dosage Forms and Drug Delivery Systems". 9th ed. New York: Lippincott Williams & Wilkins, 2011. e-book.