Ogden, Sheila J. Calculation of drug dosages : a work text / - 9th ed. - St. Louis : Elsevier , 2012 . - xx, 615 p. Includes Index ISBN: 9780323077538 Subjects--Topical Terms: Drugs--DosagePharmaceutical arithmeticNursing--Mathematics National Library of Medicine Call No.: QV18.2