APA (7th ed.) Citation

Grey, Z. (1998). The Spirit of the Border: A Romance of the Early Settlers in the Ohio Valley. Project Gutenberg.

Chicago Style (17th ed.) Citation

Grey, Zane. The Spirit of the Border: A Romance of the Early Settlers in the Ohio Valley. Project Gutenberg, 1998.

MLA (9th ed.) Citation

Grey, Zane. The Spirit of the Border: A Romance of the Early Settlers in the Ohio Valley. Project Gutenberg, 1998.

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