APA (7th ed.) Citation

Gale Group, Rabunal, J. R., Dorado, J., & Pazos Sierra, A. (2009). Encyclopedia of artificial intelligence. Information Science Reference.

Chicago Style (17th ed.) Citation

Gale Group, Juan Ramon Rabunal, Julian Dorado, and Alejandro Pazos Sierra. Encyclopedia of Artificial Intelligence. Hershey, Penn: Information Science Reference, 2009.

MLA (9th ed.) Citation

Gale Group, et al. Encyclopedia of Artificial Intelligence. Information Science Reference, 2009.