APA (7th ed.) Citation

MacDonald, G. (2004). Warlock o' Glenwarlock: A Homely Romance. Project Gutenberg.

Chicago Style (17th ed.) Citation

MacDonald, George. Warlock O' Glenwarlock: A Homely Romance. Project Gutenberg, 2004.

MLA (9th ed.) Citation

MacDonald, George. Warlock O' Glenwarlock: A Homely Romance. Project Gutenberg, 2004.

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