APA (7th ed.) Citation

Fairfax, N. V., & Ripley, H. A. (2013). Crossed Trails in Mexico Mexican Mystery Stories #3. Project Gutenberg.

Chicago Style (17th ed.) Citation

Fairfax, Nell Virginia, and Helen Allan Ripley. Crossed Trails in Mexico Mexican Mystery Stories #3. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Fairfax, Nell Virginia, and Helen Allan Ripley. Crossed Trails in Mexico Mexican Mystery Stories #3. Project Gutenberg, 2013.

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