APA (7th ed.) Citation

United States. National Ocean Service. (1992). West Indies, Virgin Islands, Pillsbury Sound (9th ed., July 11/92.). The Service.

Chicago Style (17th ed.) Citation

United States. National Ocean Service. West Indies, Virgin Islands, Pillsbury Sound. 9th ed., July 11/92. Washington, D.C.: The Service, 1992.

MLA (9th ed.) Citation

United States. National Ocean Service. West Indies, Virgin Islands, Pillsbury Sound. 9th ed., July 11/92. The Service, 1992.