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Index to publications of the United States Department of agriculture, ---- ---- 1926-1930
- "Index to publications of the United States Department of Agriculture 1926-1930"
- "Index to publications of the United States Department of agriculture, ---- ---- 1926-1930"@en
- "Index to publications of the United States department of agriculture, 1926-1930, compiled by Mary A. Bradley"
- "Index to publications of the United States Department of Agriculture, 1926-1930"@en