APA (7th ed.) Citation

Irving, W. (2005). The Life and Voyages of Christopher Columbus (Volume II). Project Gutenberg.

Chicago Style (17th ed.) Citation

Irving, Washington. The Life and Voyages of Christopher Columbus (Volume II). Project Gutenberg, 2005.

MLA (9th ed.) Citation

Irving, Washington. The Life and Voyages of Christopher Columbus (Volume II). Project Gutenberg, 2005.

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