000			00313nam a2200133Ia 4500
005			20240924144005.0
008			240923s9999 xx 000 0 und d
100			_aC B P C
245		0	_aQuality and trend of river yamuna (1977-1982)
260			_aNew Delhi
260			_bC B P C
260			_c1983
942			_cBK
999			_c37145 _d37145