APA (7th ed.) Citation

Williamson, M. (2009). John and Betty's History Visit. Project Gutenberg.

Chicago Style (17th ed.) Citation

Williamson, Margaret. John and Betty's History Visit. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Williamson, Margaret. John and Betty's History Visit. Project Gutenberg, 2009.

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