APA (7th ed.) Citation

Eastman, C. A. (1990). Indian heroes and great chieftains. Project Gutenberg.

Chicago Style (17th ed.) Citation

Eastman, Charles Alexander. Indian Heroes and Great Chieftains. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Eastman, Charles Alexander. Indian Heroes and Great Chieftains. Project Gutenberg, 1990.

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