Παραπομπή σε μορφή APA (7η εκδ.)

National Geographic Society (U.S.). (1991). Research & exploration: A scholarly publication of the National Geographic Society. The Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Geographic Society (U.S.). Research & Exploration: A Scholarly Publication of the National Geographic Society. Washington, D.C.: The Society, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

National Geographic Society (U.S.). Research & Exploration: A Scholarly Publication of the National Geographic Society. The Society, 1991.