APA (7th ed.) Citation

MacKay, A. (2011). By Trench and Trail in Song and Story. Project Gutenberg.

Chicago Style (17th ed.) Citation

MacKay, Angus. By Trench and Trail in Song and Story. Project Gutenberg, 2011.

MLA (9th ed.) Citation

MacKay, Angus. By Trench and Trail in Song and Story. Project Gutenberg, 2011.

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