APA (7th ed.) Citation

Cullum, R. (2008). The Watchers of the Plains A Tale of the Western Prairies. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cullum, Ridgwell. The Watchers of the Plains A Tale of the Western Prairies. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Cullum, Ridgwell. The Watchers of the Plains A Tale of the Western Prairies. Project Gutenberg, 2008.

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