00276nam a2200109 a 450000500170000002000150001708200220003210000290005424500420008326000240012530000170014920251203091649.0  a8170246032  a363.7295,bD, dha  aDhar, B.B., Saxena, N.C.  aSocio-economic impacts of environment  aDelhibAshishc1994  ax,296p, 22cm