000			002870000a22001330004500
245			_aEnvironmental science
100			_aSmith, B.J.
100			_aPhillips, G.M.
100			_aSweeney, M.E.
260			_aLondon _bLongman _c1982
080			_a628 _bS6
041			_aEN
942			_cBK
999			_c117153 _d117153