000			00319nam a2200145Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c750
040			_aET
100			_aM.N MADHYASTHA
245		0	_aPROSPECTS AND PROBLEMS OF ENV.
260			_bDAYA PUB. _aDELHI
300			_a327
500			_a14088
942			_cBK
999			_c20343 _d20343