000 00256nam a2200097Ia 4500
100 _aBishtha S
245 _aParyavaran Pradushan aur Ikkisavi Sadi
260 _bTakshashila Prakashan, N'Delhi
082 _aG:5:(D854)/152N92/B20851
300 _app 126; 22*14
999 _c34445
_d34445