Directory of U.S. register of merit sires and dams qualifying under the National poultry improvement plan ...
Contributors: United States. Bureau of Animal Industry.
Series: Miscellaneous publication / United States Department of Agriculture -- no. 557, 587, 644; Miscellaneous publication (United States. Dept. of Agriculture) -- no. 557, 587, 644.
Publisher: U.S. Govt. print, off.
Published: 1941
Place of publication: Washington
Language: eng
Subjects: Poultry industry -- Directories.; Poultry -- Breeding.
Genres: Directories.
Other titles: Register of merit sires and dams qualifying under the National poultry improvement plan.; National poultry improvement plan.
Notes: 1938/39-1940/41 issued as Bureau of animal industry. Animal husbandry division. A.H.D. no. 39, 39A, 39B.

1941/42 issued as Dept. of agriculture Miscellaneous publication no. 539.

1938/39-1940/41 reproduced from type-written copy.

1938/39 has title Directory of U.S. r.o.m. sires and dams...