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020 _a069709880X
040 _aBD-DhUAAB
_cBD-DhUAAB
082 _223
_a363.7
_bENE
100 _aEnger, Eldon D. & Smith, Bradley F.
245 _aEnvironmental Science
_cEldon D. Enger & Bradley F. Smith
260 _aU.S.A:
_bWm.C. Brown,
_c1992
300 _aXIV,514P. Pic
_c26CM.
650 _xScience
942 _2ddc
_cBK
999 _c1070
_d1070