Allen, Loyd V. Ansel's pharmaceutical dosage forms and drug delivery systems / Loyd V. Allen, Nicholas G. Popovich and Howard C. Ansel. - 9th ed. - Philadelphia : Lippincott Williams & Wilkins, c2011. - viii, 710 pages : illustrations ; 26 cm. Includes bibliographical references and index. ISBN: 9780781779340 (alk. paper) 9788184733914 Subjects--Topical Terms: Drugs--Dosage forms.Drug delivery systems. Dewey Class. No.: 615.1 ALL