000			00419nam a22001577a 4500
020			_a9780070647725
082			_a333.72 _bCUN/P
100			_aCunningham, William P
100			_aCunningham, Mary Ann
245			_aPrinciples of environmrntal science : inquiry and applications
250			_a4th.
260			_aNew Delhi _bTata McGraw-Hill _c2007
300			_a410p.
650			_aEnvironmental science
942			_cBK
999			_c41351 _d41351