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3
Ecology and Management of Cowbirds and Their Hosts
Studies in the Conservation of North American Passerine Bir...
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4
Experimental bacterial and chemical pollution of wells via ..
United States congressional serial set ; serial set no. 8746;House document / 69th Congress, 2nd session. House ; no. 597
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Contributions to the hydrology of the United States 1927. N..
United States congressional serial set ; serial set no. 8774;House document / 69th Congress, 2nd session. House ; no. 642