APA (7th ed.) Citation

Fenn, G. M. (2007). Marcus: The Young Centurion. Project Gutenberg.

Chicago Style (17th ed.) Citation

Fenn, George Manville. Marcus: The Young Centurion. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Fenn, George Manville. Marcus: The Young Centurion. Project Gutenberg, 2007.

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