APA (7th ed.) Citation

O'Brien, J. (2006). Into the Jaws of Death. Project Gutenberg.

Chicago Style (17th ed.) Citation

O'Brien, Jack. Into the Jaws of Death. Project Gutenberg, 2006.

MLA (9th ed.) Citation

O'Brien, Jack. Into the Jaws of Death. Project Gutenberg, 2006.

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