00289nam a2200121Ia 4500008004100000041000800041082001200049100001000061245003800071260002700109300002400136365000700160240624s9999    xx            000 0 und d  aeng  a330 IGN  aIGNOU  aECONOMIC AND SOCIAL ENVIRONMENT 1  c2007aNew DelhibIGNOU  a114 : p. : cm. ; 26  cRS