APA (7th ed.) Citation

Wizards of the Coast, Inc. (2005). World of Greyhawk. [Wizards of the Coast].

Chicago Style (17th ed.) Citation

Wizards of the Coast, Inc. World of Greyhawk. [United States]: [Wizards of the Coast], 2005.

MLA (9th ed.) Citation

Wizards of the Coast, Inc. World of Greyhawk. [Wizards of the Coast], 2005.

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