United States. Hydrographic Office. (1920). Scandinavia pilot: Volume II. Kattegat to Cape Arkona, including the Sound, Great and Little Belts, and Kiel Bay. GPO.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. Scandinavia Pilot: Volume II. Kattegat to Cape Arkona, Including the Sound, Great and Little Belts, and Kiel Bay. [Washington]: GPO, 1920.
MLA (9th ed.) CitationUnited States. Hydrographic Office. Scandinavia Pilot: Volume II. Kattegat to Cape Arkona, Including the Sound, Great and Little Belts, and Kiel Bay. GPO, 1920.
Warning: These citations may not always be 100% accurate.