United States. Army. Corps of Engineers.Waterways of Korea (англ.). — Strategic Intelligence Branch, Military Intelligence Division, Office, Chief of Engineers, U.S. Army, 1945. Архивировано 14 августа 2023 года.
United States. Army. Corps of Engineers.Waterways of Korea (англ.). — Strategic Intelligence Branch, Military Intelligence Division, Office, Chief of Engineers, U.S. Army, 1945. Архивировано 14 августа 2023 года.