APA (7th ed.) Citation

Great Britain. Hydrographic Department, Great Britain. Admiralty, & Great Britain. Hydrographic Office. (1958). Indian Ocean, Maldive Islands, Ihavandiffulu Atoll. Admiralty.

Chicago Style (17th ed.) Citation

Great Britain. Hydrographic Department, Great Britain. Admiralty, and Great Britain. Hydrographic Office. Indian Ocean, Maldive Islands, Ihavandiffulu Atoll. London: Admiralty, 1958.

MLA (8th ed.) Citation

Great Britain. Hydrographic Department, et al. Indian Ocean, Maldive Islands, Ihavandiffulu Atoll. Admiralty, 1958.