Cita APA (7a ed.)

National Geographic Society. (1988). The explorers, a century of discovery [Vídeo] (Special commemorative ed.). National Geographic.

Cita Chicago Style (17a ed.)

National Geographic Society. The Explorers, a Century of Discovery [Vídeo]. Special commemorative ed. United Kingdom: National Geographic, 1988.

Cita MLA (9a ed.)

National Geographic Society. The Explorers, a Century of Discovery [Vídeo]. Special commemorative ed. National Geographic, 1988.