Pray, W. Steven Nonprescription product therapeutics / W. Steven Pray - Philadelphia : Lippincott Williams & Wilkins, c1999. - xiv, 816 p. : ill. ; 28 cm. ISBN: 0683301268 LCCN: Subjects--Topical Terms: DrugsNonprescriptionDrugs LC Class. No.: RM671 / .A1P69 1999