000			00408nam a2200169Ia 4500
008			230711s9999||||xx |||||||||||||| ||und||
041			_aENG
082			_a624 _bBO-E
100			_aDaniel B.Botkin
245		0	_aEnvironmental studies
250			_a1st Ed.
260			_c1982 _aNew Delhi _bMerrill Publication Co,
300			_a506
650			_aCivil Engineering
700			_aEdward A.Keller
942			_cBK
999			_c2874 _d2874