Citation

Japan Rikuchi Sokuryōbu. Japan 陸地測量部. Japan Rikugun Sanbō Honbu. Japan 陸軍 参謀本部. (1938). Jūmanbun no ichizu Shōkōanrei. [JPEG 2000]. Retrieved from https://earthworks.stanford.edu/catalog/stanford-hy943cf4125