APA (7th ed.) Citation

Grey, Z. (1940). Riders of the purple sage. Black.

Chicago Style (17th ed.) Citation

Grey, Zane. Riders of the Purple Sage. Roslyn, NY: Black, 1940.

MLA (9th ed.) Citation

Grey, Zane. Riders of the Purple Sage. Black, 1940.

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