000			00433nam a2200169Ia 4500
008			190329s9999||||xx |||||||||||||| ||und||
020			_a9788171339655
040			_aNITIL _cNITIL
082			_221st _a333.7 _bS531E
100			_aSharma, P D
245		0	_aEcology and environment _cP D Sharma
250			_a11th
260			_aMeerut _bRastogi publications _c2013
300			_a643p.
650			_aECOLOGY; ENVIRONMENT
942			_cBKS
999			_c74971 _d74971