United States. Bureau of Agricultural Economics & Brodell, A. P. (1930). Role of machinery in development of agriculture of U.S. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics and Albert P. Brodell. Role of Machinery in Development of Agriculture of U.S. Washington: [publisher not identified], 1930.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics and Albert P. Brodell. Role of Machinery in Development of Agriculture of U.S. [publisher not identified], 1930.
Warning: These citations may not always be 100% accurate.