APA (7th ed.) Citation

United States. Bureau of Agricultural Economics & Hennefrund, H. E. (1939). Part-time farming in the United States: A selected list of references. U.S. Dept. of Agriculture, Bureau of Agricultural Economics.

Chicago Style (17th ed.) Citation

United States. Bureau of Agricultural Economics and Helen E. Hennefrund. Part-time Farming in the United States: A Selected List of References. Washington: U.S. Dept. of Agriculture, Bureau of Agricultural Economics, 1939.

MLA (8th ed.) Citation

United States. Bureau of Agricultural Economics and Helen E. Hennefrund. Part-time Farming in the United States: A Selected List of References. U.S. Dept. of Agriculture, Bureau of Agricultural Economics, 1939.