APA (7th ed.) Citation

Shirreffs, G. D. (1974). Showdown in Sonora. Barker.

Chicago Style (17th ed.) Citation

Shirreffs, Gordon D. Showdown in Sonora. London: Barker, 1974.

MLA (8th ed.) Citation

Shirreffs, Gordon D. Showdown in Sonora. Barker, 1974.

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