Cita APA (7a ed.)

Barrett, D., & McNamara, P. (2012). Encyclopedia of sleep and dreams: The evolution, function, nature, and mysteries of slumber. Greenwood.

Cita Chicago Style (17a ed.)

Barrett, Deirdre, y Patrick McNamara. Encyclopedia of Sleep and Dreams: The Evolution, Function, Nature, and Mysteries of Slumber. Santa Barbara (California) [etc.]: Greenwood, 2012.

Cita MLA (9a ed.)

Barrett, Deirdre, y Patrick McNamara. Encyclopedia of Sleep and Dreams: The Evolution, Function, Nature, and Mysteries of Slumber. Greenwood, 2012.