APA (7th ed.) Citation

Williamson, C. N., & Williamson, A. M. (2013). Angel Unawares: A Story of Christmas Eve. Project Gutenberg.

Chicago Style (17th ed.) Citation

Williamson, C. N., and A. M. Williamson. Angel Unawares: A Story of Christmas Eve. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Williamson, C. N., and A. M. Williamson. Angel Unawares: A Story of Christmas Eve. Project Gutenberg, 2013.

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