APA (7th ed.) Citation

Buchan, J. (2007). Greenmantle. Project Gutenberg.

Chicago Style (17th ed.) Citation

Buchan, John. Greenmantle. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Buchan, John. Greenmantle. Project Gutenberg, 2007.

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