APA (7th ed.) Citation

Cornish, V. (2011). The Panama Canal and its Makers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cornish, Vaughan. The Panama Canal and Its Makers. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Cornish, Vaughan. The Panama Canal and Its Makers. Project Gutenberg, 2011.

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