000219975 000__ 01149cam\a2200301Ka\45e0 000219975 001__ 219975 000219975 005__ 20220217104151.0 000219975 008__ 990813s1995\\\\vau\\\\\b\\\\f000\0\eng\d 000219975 035__ $$a(OCoLC)39178097 000219975 035__ $$a219975 000219975 040__ $$aGPO$$cGPO$$dISE 000219975 049__ $$aISEA 000219975 074__ $$a0624-H (MF) 000219975 0860_ $$aI 19.76:95-536 000219975 1001_ $$aJohnson, Craig A. 000219975 24510 $$aNitrogen isotopes in nitrate from surface water and shallow groundwater at Sixmile Creek, southeastern Colorado$$h[microform] /$$cby Craig A. Johnson, Robert A. Zielinski, and Sigrid Asher-Bolinder. 000219975 260__ $$a[Reston, Va.] :$$bU.S. Dept. of the Interior, U.S. Geological Survey,$$c1995. 000219975 300__ $$a1 v. :$$bill. 000219975 4901_ $$aOpen-file report ;$$v95-536 000219975 500__ $$aShipping list no.: 97-0317-M. 000219975 533__ $$aMicrofiche.$$b[Denver, Colo. :$$cU.S. Geological Survey,$$d1997?]$$e1 microfiche. 000219975 650_0 $$aWater$$xNitrogen content$$zColorado. 000219975 650_0 $$aNitrogen$$zColorado$$xIsotopes. 000219975 7001_ $$aZielinski, Robert A. 000219975 7001_ $$aAsher-Bolinder, Sigrid. 000219975 7102_ $$aGeological Survey (U.S.) 000219975 830_0 $$aU.S. Geological Survey open-file report ;$$v95-536. 000219975 85230 $$bdfich$$hI 19.76:$$i95-536 000219975 909CO $$ooai:library.usi.edu:219975$$pGLOBAL_SET 000219975 980__ $$aBIB 000219975 980__ $$aGOV RESOURCE 000219975 994__ $$aE0$$bISE