MLA

Conley, Tim, and Stephen Cain. Encyclopedia of Fictional and Fantastic Languages. Westport, Conn.: Greenwood Press, 2006.

APA

Conley, T., & Cain, S. (2006). Encyclopedia of fictional and fantastic languages. Westport, Conn.: Greenwood Press.

Chicago

Conley, Tim, and Stephen Cain. Encyclopedia of Fictional and Fantastic Languages. Westport, Conn.: Greenwood Press, 2006.