APA (7th ed.) Citation

Grey, Z. (2000). The Last of the Plainsmen. Project Gutenberg.

Chicago Style (17th ed.) Citation

Grey, Zane. The Last of the Plainsmen. Project Gutenberg, 2000.

MLA (9th ed.) Citation

Grey, Zane. The Last of the Plainsmen. Project Gutenberg, 2000.

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