Chopra, R. N. Indegenous Drugs of India their Medical and Economical Auspects - Calcutta The Art Press 1933 - 655 Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468) Subjects--Topical Terms: Medicinal plants, Materia medica, Botony Dewey Class. No.: Zb144