APA Style

ALLEN, L, V. et al (1999). Pharmaceutical Dosage Forms and Drug Delivery Systems Seventh Edition (1). USA: Lippincott William & Wilkins.

MLA Style

ALLEN, LOYD, V.. et al. "Pharmaceutical Dosage Forms and Drug Delivery Systems Seventh Edition". 1 USA: Lippincott William & Wilkins, 1999. Text.