Books by Zellmer R. Pettet:
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Pettet, Zellmer R. (Zellmer Roswell), 1880-1962, contrib.: Negroes in the United States, 1920-32 (Washington: GPO, 1935), by United States Bureau of the Census, also contrib. by Charles Edward Hall (page images at HathiTrust)
Additional books by Zellmer R. Pettet in the extended shelves:
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Pettet, Zellmer R. (Zellmer Roswell), 1880-1962: Agriculture, farms, farm property, livestock, and crops (Washington, D.C. : U.S. Government Printing Office : U.S. Dept. of Commerce, 1942., 1942), also by United States Bureau of the Census (page images at HathiTrust)- Pettet, Zellmer R. (Zellmer Roswell), 1880-1962: Census of agriculture: 1935. General report : statistics by subjects (Washington : U.S. Dept. of Commerce, Bureau of the Census, 1937., 1937), also by United States Bureau of the Census (page images at HathiTrust)
- Pettet, Zellmer R. (Zellmer Roswell), 1880-1962: Sixteenth census of the United States: 1940. Agriculture ... (U.S. Govt. Print. Off., 1942), also by United States Bureau of the Census (page images at HathiTrust)
- Pettet, Zellmer R. (Zellmer Roswell), 1880-1962: United States census of agriculture, 1935 : Maryland, statistics by counties, farms, farm acreage and value, and selected livestock and crops (U.S. Govt. Print. Off., 1935), also by United States Bureau of the Census (page images at HathiTrust)
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