Tyler,Varro E Pharmacognosy / Varro E. Tyler. - Rep. - USA : Lea & Fibiger, c1988. - viii,519 p. : ill.;, figs.;, 23 cm. Includes index. Dept. of Pharmacy. ISBN: 0812110714 Subjects--Topical Terms: Pharmacognosy. Dewey Class. No.: 615.321 / TYP