Cita APA

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

Citación estilo Chicago

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

Cita MLA

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