APA (7th ed.) Citation

Holley, G. W. (2011). The Falls of Niagara and Other Famous Cataracts. Project Gutenberg.

Chicago Style (17th ed.) Citation

Holley, George W. The Falls of Niagara and Other Famous Cataracts. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Holley, George W. The Falls of Niagara and Other Famous Cataracts. Project Gutenberg, 2011.

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