APA (7th ed.) Citation

Graydon, W. M. (2008). The Cryptogram: A Story of Northwest Canada. Project Gutenberg.

Chicago Style (17th ed.) Citation

Graydon, William Murray. The Cryptogram: A Story of Northwest Canada. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Graydon, William Murray. The Cryptogram: A Story of Northwest Canada. Project Gutenberg, 2008.

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