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5
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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6
Keeping livestock healthy. Yearbook of Agriculture, 1942
United States congressional serial set ; serial set no. 10718;House document / 77th Congress, 2nd session. House ; no. 527