APA Style

Okrent, A. (2010). In The Land of Invented Languages: A Celebration of Linguistic Creativity, Madness, and Genius . New York: Spiegel & Grau Trade.

MLA Style

Okrent, Arika. "In The Land of Invented Languages: A Celebration of Linguistic Creativity, Madness, and Genius". New York: Spiegel & Grau Trade, 2010. Text.