APA (7th ed.) Citation

Church, F. P. (2008). Yes, Virginia, There Is A Santa Claus. Project Gutenberg.

Chicago Style (17th ed.) Citation

Church, Francis Pharcellus. Yes, Virginia, There Is A Santa Claus. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Church, Francis Pharcellus. Yes, Virginia, There Is A Santa Claus. Project Gutenberg, 2008.

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