Style de citation APA

McDowell, B., Dale, B. I., & Lee, C. V. e. V. (1970). Gypsies: Wanderers of the world. National Geographic Society.

Style de citation Chicago

McDowell, Bart, Bruce Illustrator Dale, et Clifford Verfasser eines Vorworts Lee. Gypsies: Wanderers of the World. Washington, DC: National Geographic Society, 1970.

Style de citation MLA

McDowell, Bart, et al. Gypsies: Wanderers of the World. National Geographic Society, 1970.