National Geographic Book Service. (1971). Great religions of the world. National Geographic Society.
Cita Chicago Style (17a ed.)National Geographic Book Service. Great Religions of the World. Washington: National Geographic Society, 1971.
Cita MLA (9a ed.)National Geographic Book Service. Great Religions of the World. National Geographic Society, 1971.
Precaución: Estas citas no son 100% exactas.