00695nam a22002057a 4500 20100810112328.0 ENG-99252 9788190770583 100.00 EN-82784 DBAD/PUB 628 Balamurugan, S. 9890 A text book of environmental science / by S. Balamurugan Chennai Puthagapoonga 2008 17/9, Sundareswarar Koil Strees, Rayapet, Chennai 600014 211p. 20cm (pbk) Environmental science 9891 ddc EN 628 BAL 40554 40554 0 0 0 1 NFIC DBAD DBAD 2010-08-10 DBAD/PUB 100.00 0 628 BAL EN-82784 2010-08-10 00:00:00 1 100.00 2010-08-10 EN