APA (7th ed.) Citation

Collingwood, H., & Overend, W. H. (2007). The Missing Merchantman. Project Gutenberg.

Chicago Style (17th ed.) Citation

Collingwood, Harry, and William Heysham Overend. The Missing Merchantman. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Collingwood, Harry, and William Heysham Overend. The Missing Merchantman. Project Gutenberg, 2007.

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