APA (7th ed.) Citation

Castlemon, H. (2004). Frank on a Gun-Boat. Project Gutenberg.

Chicago Style (17th ed.) Citation

Castlemon, Harry. Frank on a Gun-Boat. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Castlemon, Harry. Frank on a Gun-Boat. Project Gutenberg, 2004.

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