found: U.S. Defense Mapping Agency. Hydrographic/Topographic Center. Japan, Nansei Shotō--Yaeyama--Rettō, 1989:map recto (Nansei Shotō)
found: Pferde auf See, 1991:t.p. (Riukiu-Inseln)
found: Chosŏn, Yugu kwanʼgye saryo chipsŏng, 1998:t.p. (Yugu)
found: Qing dai Liuqiu guo wang biao zou wen shu xuan lu, 1997:t.p. (Liuqiu; Liuqiu Guo)
found: Encyc. Brit. online, 04/26/2001article "Hung-wu", p. 1 (Liuqiu, now Ryukyu Islands)
found: Dict. of Ming bio. 1368-1644, 1976:p . 165 (Liuqiu (Ryukyu) Islands, formed Zhongshan kingdom in ancient times)
found: Britannica Micro.:v. 10, p. 272 (Ryukyu Islands; formed an independent kingdom in ancient times; in 1879 became an integral part of Japan)
found: GeoNames, algorithmically matched, 2009(island; 26°30ʹ00ʺN 128°00ʹ00ʺE)
found: Ryūkyū Rettō 1:25,000, 1944:map recto (Ryūkyū Rettō)
