000 00299nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aKHANNA (Gopesh Math)
245 0 _aEnvironment Problems and the united moti
260 _cAshish Publishing House
365 _b0
650 _aNIL
942 _cBK
999 _c96455
_d96455