APA (7th ed.) Citation

Beard, C. A. (2010). Contemporary American History, 1877-1913. Project Gutenberg.

Chicago Style (17th ed.) Citation

Beard, Charles A. Contemporary American History, 1877-1913. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Beard, Charles A. Contemporary American History, 1877-1913. Project Gutenberg, 2010.

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