000 00308nam a2200145 4500
020 _a9780697286550
082 _a363.7 ENG
100 _aEldon,D.Enger
245 _aEnviornmental Science
250 _a6Th
260 _aNew York
_bMcGraw-Hill
_c1997
300 _a456
650 _aEnviornment
942 _cBK
999 _c1578
_d1578