APA (7th ed.) Citation

Ford, H., & Butt, W. (2012). The Theory and Practice of Archery. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ford, Horace, and W. Butt. The Theory and Practice of Archery. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Ford, Horace, and W. Butt. The Theory and Practice of Archery. Project Gutenberg, 2012.

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