APA (7th ed.) Citation

Colton, A. (2013). The Debatable Land. Project Gutenberg.

Chicago Style (17th ed.) Citation

Colton, Arthur. The Debatable Land. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Colton, Arthur. The Debatable Land. Project Gutenberg, 2013.

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