APA (7th ed.) Citation

Haskin, F. J. (2013). The Panama Canal. Project Gutenberg.

Chicago Style (17th ed.) Citation

Haskin, Frederic Jennings. The Panama Canal. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Haskin, Frederic Jennings. The Panama Canal. Project Gutenberg, 2013.

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