APA (7th ed.) Citation

Patchin, F. G. (2004). The Pony Rider Boys in the Grand Canyon; Or, The Mystery of Bright Angel Gulch. Project Gutenberg.

Chicago Style (17th ed.) Citation

Patchin, Frank Gee. The Pony Rider Boys in the Grand Canyon; Or, The Mystery of Bright Angel Gulch. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Patchin, Frank Gee. The Pony Rider Boys in the Grand Canyon; Or, The Mystery of Bright Angel Gulch. Project Gutenberg, 2004.

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