Educational aids on the National Poultry Improvement Plan
Edition: Issued June 1941
Series: A.H.D -- No. 40; AHD -- no. 40
Published: 1941
Language: eng
Subjects: Poultry; Aids and devices; United States. Bureau of Animal Industry. Animal Husbandry Division; Poultry industry; United States; Teaching; Breeding
Notes: Cover title.