00286nam a2200109Ia 450000500170000000800410001708200140005810000190007224500390009126000370013030000090016720260224040843.0260224s9999||||xx |||||||||||||| ||und||  a574.5 PUR  aPurohit, S.S.  0aEcology, environment and pollution  aJodhpur : Agrobios (India)c2005  a1023