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6
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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7
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
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8
Food and life. Yearbook of Agriculture, 1939
United States congressional serial set ; serial set no. 10369;House document / 76th Congress, 1st session. House ; no. 28
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9
Vitamin D. Basic Research and its Clinical Application
Proceedings of the Fourth Workshop on Vitamin D, Berlin, We...