000			00430nam a2200181Ia 4500
008			201023s9999||||xx |||||||||||||| ||und||
020			_a978-81-89928-35-3
100			_aWalia,Arvind.
245		0	_aEnvironment Science.
250			_a2nd.
260			_aNew Delhi _bVikas _c2012
300			_a8.56
365			_b250
650			_aCivil Engg.
942			_cTB
999			_c3531 _d3531