00302nam a2200109Ia 4500008004100000020001500041041000800056100001600064245005600080260004800136300000800184211209s2005    xx            000 0 und d  a8122415849  aeng  aSARAVANAN K  aPRINCIPLES OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY   aNEW DELHIbNEW AGE INTERNATIONAL LTD.c2005  a192