APA (7th ed.) Citation

Campbell, D. (2011). History of Prince Edward Island. Project Gutenberg.

Chicago Style (17th ed.) Citation

Campbell, Duncan. History of Prince Edward Island. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Campbell, Duncan. History of Prince Edward Island. Project Gutenberg, 2011.

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