APA (7th ed.) Citation

Haines, F. (1938). Northward spread of horses among the plains Indians.

Chicago Style (17th ed.) Citation

Haines, Francis. Northward Spread of Horses Among the Plains Indians. n.p, 1938.

MLA (8th ed.) Citation

Haines, Francis. Northward Spread of Horses Among the Plains Indians. 1938.

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