01049cam a2200277   4500001001300000003000400013005001700017008004100034010001700075040003600092050002000128070002200148245015800170260008200328300003000410410006500440500001700505504003000522650001400552650006500566650001400631650004500645650002200690700004200712999001700754agr68000057 DLC20260227111028.0690925s1967    dcua     b    000 0 eng c  aagr68000057   aU.S. Nat'l Agr. Libr.cDLCdDLC10aS900.U5 no. 1340 aA56.9 R31 no. 13400aDistribution of nitrates and other water pollutants under fields and corrals in the middle South Platte Valley of Coloradoc[by B. A. Stewart and others.  aWashington]bAgricultural Research Service, U.S. Dept. of Agriculture,c1967.  av, 206 p.billus.c26 cm.10a[United States.bAgricultural Research Service]tARSv41-134  aCover title.  aBibliography: p. 205-206. 0aNitrates. 0aWaterxPollutionzSouth Platte River Valley (Colo. and Neb.) 3aNitrates. 3aWater, UndergroundzSouth Platte Valley. 3aWaterxPollution.1 aStewart, B. A.q(Bobby Alton),d1932-  c12371d12371