APA (7th ed.) Citation

Gould, A. C. (2012). The Modern American Pistol and Revolver. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gould, A. C. The Modern American Pistol and Revolver. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Gould, A. C. The Modern American Pistol and Revolver. Project Gutenberg, 2012.

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