APA (7th ed.) Citation

Unknown & Holland, R. S. (2011). King Arthur and the Knights of the Round Table. Project Gutenberg.

Chicago Style (17th ed.) Citation

Unknown and Rupert S. Holland. King Arthur and the Knights of the Round Table. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Unknown and Rupert S. Holland. King Arthur and the Knights of the Round Table. Project Gutenberg, 2011.

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