APA (7th ed.) Citation

Horse and Mule Association of America. (1939). Horse & mule power in American agriculture: Advantages of farm grown power. Horse and Mule Association of America.

Chicago Style (17th ed.) Citation

Horse and Mule Association of America. Horse & Mule Power in American Agriculture: Advantages of Farm Grown Power. [Chicago, Ill.]: Horse and Mule Association of America, 1939.

MLA (9th ed.) Citation

Horse and Mule Association of America. Horse & Mule Power in American Agriculture: Advantages of Farm Grown Power. Horse and Mule Association of America, 1939.