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Directory of U.S. Register of Merit Sires and Dams Qualifying Under the National Poultry Improvement Plan, 1942-43
Directory of U.S. Register of Merit Sires and Dams Qualifying Under the National Poultry Improvement Plan, 1942-43Ralph Melvin Nelson
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Ralph Melvin Nelson
Directory of U.S. Register of Merit Sires and Dams Qualifying Under the National Poultry Improvement Plan, 1942-43

Directory of U.S. Register of Merit Sires and Dams Qualifying Under the National Poultry Improvement Plan, 1942-43

Ralph Melvin Nelson, United States. Bureau of Agricultural Economics, Betty Thomas Richardson, Earl Hazeltine Frothingham, Clarice Louisba Scott, Catherine Marie Viehmann, Orvis F. Johndrew, Paul Maxwell Williams, Nathan Ryno Smith, Ruth Evelyn Gordon, Francis Eugene Clark, Jean Liberty Pennock, Melvin Wright Buster, United States. Department of Agriculture. Interbureau Coordinating Committee on Post-War Programs, William Andrew Archer, Worley S. Earp
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This publication provides some information of a nation-wide survey to determine the importance of butter as a source of vitamin A in the diet of the people of the United States.
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