Narayana, P. Suresh Textbook of pharmacognosy P. Suresh Narayana, T. Pullaiah and D. Varalakshmi. - 2nd ed. - New Delhi CBS 2020 - xiii, 346p.: ill.; 24cm. ISBN: 9788194125488 Subjects--Topical Terms: Pharmacognosy Medicinal plant Materia medica, vegetable. Dewey Class. No.: 615.321 / N25T