Gupta, Ranjan Kumar, ed. Environmental biotechnology: A new approach - New Delhi Daya Publishing House 2016 - xv, 398 p. 4026 05/02/2020 RBP20/78875 02/03/2020 Biotechnology UGC SAP( Dr. A K Chhillar) ISBN: RS 2295.00 Dewey Class. No.: 660.60243637 G959E