APA (7th ed.) Citation

Lewis, G. E., & Lewis, J. C. (2008). Black Beaver, the Trapper. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lewis, George Edward, and James Campbell Lewis. Black Beaver, the Trapper. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Lewis, George Edward, and James Campbell Lewis. Black Beaver, the Trapper. Project Gutenberg, 2008.

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