APA (7th ed.) Citation

Hendryx, J. B. (2006). The Challenge of the North. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hendryx, James B. The Challenge of the North. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Hendryx, James B. The Challenge of the North. Project Gutenberg, 2006.

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