Das, K. K. Elements of practical biology : botany and zoology / Karuna Kanta Das and Anup kumar Chakraborty - 1st ed. - Guwahati : Bina Library Publishers, 1999. - 154 p. ; ill. : 21 cm. It includes bibliographical information and index. Subjects--Topical Terms: BiologyBotanyZoology Dewey Class. No.: 578.08 / DAS