APA (7th ed.) Citation

United States. Defense Mapping Agency. Hydrographic Center. (1974). Sailing directions (planning guide) for the North Sea and Baltic Sea. Defense Mapping Agency, Hydrographic Center.

Chicago Style (17th ed.) Citation

United States. Defense Mapping Agency. Hydrographic Center. Sailing Directions (planning Guide) for the North Sea and Baltic Sea. Washington: Defense Mapping Agency, Hydrographic Center, 1974.

MLA (9th ed.) Citation

United States. Defense Mapping Agency. Hydrographic Center. Sailing Directions (planning Guide) for the North Sea and Baltic Sea. Defense Mapping Agency, Hydrographic Center, 1974.