APA (7th ed.) Citation

Kingsley, C. (2004). Two Years Ago, Volume I. Project Gutenberg.

Chicago Style (17th ed.) Citation

Kingsley, Charles. Two Years Ago, Volume I. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Kingsley, Charles. Two Years Ago, Volume I. Project Gutenberg, 2004.

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