APA (7th ed.) Citation

National Geographic Society (U.S.). Special Publications Division. (1985). Blue horizons: Paradise isles of the Pacific. The Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Special Publications Division. Blue Horizons: Paradise Isles of the Pacific. Washington, D.C.: The Society, 1985.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Special Publications Division. Blue Horizons: Paradise Isles of the Pacific. The Society, 1985.