R.N. Trivedi Biotechnology and environment - New Delhi Anmol Publications Pvt Ltd 1997 - 204p R.N. Trivedi: Biotechnology and environment. New Delhi. Anmol Publications Pvt Ltd, 1997. 81-7488-583-8--(630.2748TRI) ENGLISH ISBN: 81-7488-583-8 Dewey Class. No.: 630.2748 / TRI