APA (7th ed.) Citation

Wolff, W. A. (2007). Shelled by an Unseen Foe. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wolff, William Almon. Shelled by an Unseen Foe. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Wolff, William Almon. Shelled by an Unseen Foe. Project Gutenberg, 2007.

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