Narayana, P Suresh The textbook of pharmacognosy / P Suresh Narayana, T pullaiah and D Varalakshmi. - 1st ed. - New Delhi : CBS publishers and distributors Pvt. Ltd., 2019 - viii, 539 p. : tables, ill. figs, picture. ; 23 cm Includes bibliographical references. ISBN: 9788123923895 Subjects--Topical Terms: Pharmacognosy Dewey Class. No.: 615 / NAT