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200 10$aExternal quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1988 /$fby Randolph B. See, John D. Gordon, and Timothy C. Willoughby
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225 1 $aWater-resources investigations report ;$v90-4030
320   $aIncludes bibliographical references (page 26).
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606   $aAcid deposition$xTesting$2fast
607   $aUnited States$2fast
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702   $aGordon$b J. D.
702   $aWilloughby$b Timothy C.
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200 1 $aAfrica's agrarian crisis$eThe roots of famine$fEdited by Stephen K. Commins, Michael F. Lofchie, and Rhys Payne
210   $aBoulder$cLynne Rienner$dc1986
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410  1$1001UON00065730$12001 $aFood in Africa series$fSeries editor: Art Hansen
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