Markandey, Dilip Kumar Environmental biotechnology / by S K Agarwal - New Delhi : A. P. H. Pub., 1998 - ix, 389 p. : ill. 23 cm. Includes index. ISBN: 8170249600 Subjects--Topical Terms: Envioronment;Biotechnology Dewey Class. No.: 63.7394 / MAO 2006.