United States. Bureau of Animal Industry. (1941). National Poultry Improvement Plan [program to improve poultry industry and hatcheries]. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Animal Industry. National Poultry Improvement Plan [program to Improve Poultry Industry and Hatcheries]. [Washington]: [s.n.], 1941.
MLA (9th ed.) CitationUnited States. Bureau of Animal Industry. National Poultry Improvement Plan [program to Improve Poultry Industry and Hatcheries]. [s.n.], 1941.
Warning: These citations may not always be 100% accurate.