LEADER 00904nam 2200169z- 450 001 9910691303703321 035 $a(CKB)5470000002346342 035 $a(EXLCZ)995470000002346342 100 $a20230503cuuuuuuuu -u- - 101 0 $aeng 200 00$aMethods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of wastewater compounds by polystyrene-divinylbenzene solid-phase extraction and capillary-column gas chromatography/mass spectrometry 210 $aDenver, CO 517 $aMethods of analysis by the U.S. Geological Survey National Water Quality Laboratory 906 $aBOOK 912 $a9910691303703321 996 $aMethods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of wastewater compounds by polystyrene-divinylbenzene solid-phase extraction and capillary-column gas chromatography$93206649 997 $aUNINA