APA (7th ed.) Citation

Elson, H. W. (2013). The Civil War Through the Camera. Project Gutenberg.

Chicago Style (17th ed.) Citation

Elson, Henry W. The Civil War Through the Camera. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Elson, Henry W. The Civil War Through the Camera. Project Gutenberg, 2013.

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