Wallis, T.E. Practical pharmacognosy T.E. Wallis. - 4th ed. - Hyderabad PharmaMed Press 2011 - ix, 235p.: ill. 23cm. ISBN: 9789381075029 Subjects--Topical Terms: Medicinal Plants Pharmacology Herbs. Dewey Class. No.: 615.321 / W16P22