APA (7th ed.) Citation

Roosevelt, T. (2004). Through the Brazilian Wilderness. Project Gutenberg.

Chicago Style (17th ed.) Citation

Roosevelt, Theodore. Through the Brazilian Wilderness. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Roosevelt, Theodore. Through the Brazilian Wilderness. Project Gutenberg, 2004.

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