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10
Grass, the Yearbook of Agriculture 1948
United States congressional serial set ; serial set no. 11174;House document / 80th Congress, 1st session. House ; no. 480
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11
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