The poultry industry of the United States of America. A special report supplementing the exhibit of the United States Department of agriculture at the fourth World's poultry congress, London, 1930. - United States. Department of Agriculture; World's poultry congress and exhibition. London, 1930. (Washington, U.S. Govt. print. off., 1930)
" ... A joint contribution from the bureaus of Animal industry, Agricultural economics, and Home economics, and the Extension service."--U.S. Dept. of agriculture. Official record, July 10, 1930, p. 5.
Keywords: Poultry