APA (7th ed.) Citation

Freeman, L. R. (2011). Down the Yellowstone. Project Gutenberg.

Chicago Style (17th ed.) Citation

Freeman, Lewis R. Down the Yellowstone. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Freeman, Lewis R. Down the Yellowstone. Project Gutenberg, 2011.

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