[Better plants and animals.
- Washington, U.S. Govt. Print. Off., 1936-37]
- 2 v. illus., ports., maps. 24 cm.
- Its Yearbook of agriculture, 1936-1937 .
- Yearbook of agriculture (Washington, D.C. : 1926) ; 1936-1937. .
Includes bibliographies.
agr55000011
Genetics--Research.
Plant breeding.
Livestock.
S21 / .A35 1936-1937
631.52