Cita APA (7a ed.)

McDowell, B. (1970). Gypsies: Wanderers of the world. National Geographic Society.

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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