APA (7th ed.) Citation

Hassrick, R. B. (1976). Cowboys and Indians: An illustrated history. Octopus Books.

Chicago Style (17th ed.) Citation

Hassrick, Royal B. Cowboys and Indians: An Illustrated History. London: Octopus Books, 1976.

MLA (9th ed.) Citation

Hassrick, Royal B. Cowboys and Indians: An Illustrated History. Octopus Books, 1976.

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