APA (7th ed.) Citation

United States. National Ocean Service & United States. Defense Mapping Agency. Hydrographic/Topographic Center. (1990). Nautical chart symbols, abbreviations, and terms: Chart no. 1, United States of America (9th ed., Jan. 1990.). The Service.

Chicago Style (17th ed.) Citation

United States. National Ocean Service and United States. Defense Mapping Agency. Hydrographic/Topographic Center. Nautical Chart Symbols, Abbreviations, and Terms: Chart No. 1, United States of America. 9th ed., Jan. 1990. [Washington, D.C.?]: The Service, 1990.

MLA (9th ed.) Citation

United States. National Ocean Service and United States. Defense Mapping Agency. Hydrographic/Topographic Center. Nautical Chart Symbols, Abbreviations, and Terms: Chart No. 1, United States of America. 9th ed., Jan. 1990. The Service, 1990.