00571nam a2200181 a 450000500170000008200190001710000150003624500490005126000260010030000230012650000930014969000120024270000170025496400250027199700120029699900170030895200640032520251203090708.0  a574.5,bD, ver  aVerma, PS.  aPrinciples of ecology: environmental biology  aDelhibS. Chandc1989  aviii, 591p, 22 cm.  aBook lost & 3 times cost (Rs 35 x 3 = 105) recovered vide challan No.3740 dated 05.12.19  aEcology  aAgarwal, VK.  bENGc100de010fg_  a16138 W  c16710d16710  02104070aPUbPUd1998-09-14l0o574.5, D, verp16138yBK