Hartley, Andrew J.
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9

Yearbook of Agriculture, 1943-1947. Science in farming 

United States congressional serial set ; serial set no. 11077;House document / 79th Congress, 2nd session. House ; no. 708
 
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10

Yearbook of the United States Department of Agriculture, 19.. 

United States congressional serial set ; serial set no. 5772;House document / 61st Congress, 2nd session. House ; no. 129
 
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11

Annual report of the Board of Regents of the Smithsonian In.. 

United States congressional serial set ; serial set no. 11104;House document / 79th Congress, 2nd session. House ; no. 408, pt. 1
 
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