APA Citation

(1940). Farmers in a changing world: The yearbook of agriculture 1940. Washington, D.C.: USDA.

Chicago Style Citation

Farmers in a Changing World: The Yearbook of Agriculture 1940. Washington, D.C.: USDA, 1940.

MLA Citation

Farmers in a Changing World: The Yearbook of Agriculture 1940. Washington, D.C.: USDA, 1940.

Warning: These citations may not always be 100% accurate.