United States. Central Intelligence Agency & United States. Department of State. Office of the Geographer. (1974). Ocean pollution factors: Major currents and shipping routes: Ocean currents (July, August, September). 12-74. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Central Intelligence Agency and United States. Department of State. Office of the Geographer. Ocean Pollution Factors: Major Currents and Shipping Routes: Ocean Currents (July, August, September). 12-74. [Washington]: [publisher not identified], 1974.
MLA (8th ed.) CitationUnited States. Central Intelligence Agency and United States. Department of State. Office of the Geographer. Ocean Pollution Factors: Major Currents and Shipping Routes: Ocean Currents (July, August, September). 12-74. [publisher not identified], 1974.