000			00451nam a2200169Ia 4500
005			20250709093353.0
008			140515s9999||||xx |||||||||||||| ||und||
020			_a9788184885248
040			_aUPES LIBRARY
082			_a363.7 _bTIW
100			_aTiwari, Vijay Kumar _9771460
245			_aTextbook of environmental studies
260			_aMumbai : _bHimalaya Publishing, _c2011
300			_a432p.
650			_aEnvironmental engineering
942			_cBK
999			_c5815 _d5815