000			00468nam a2200181Ia 4500
008			201023s9999||||xx |||||||||||||| ||und||
020			_a000-000000000
100			_aCunningham, William p
245		0	_aPrinciples of environment science
250			_a1st
260			_aNew Delhi _bTata McGraw Hill _c2001
300			_ax, 287
365			_b995
650			_aCivil Engg.
942			_cTB
999			_c1513 _d1513