TRUMBULL, Robert. Bonin Islanders Seek U.S. Tie But Remain International Pawns; Descendants of Americans Ask Citizenship in Vain--Fight Return of Japanese. New York Times. 11. 03. 1956, s. 1. Dostupné online. (anglicky)
u-tokyo.ac.jp
ioc.u-tokyo.ac.jp
Agreement between Japan and the United States of America Concerning Nanpo Shoto and Other Islands [online]. Tokio: Institute of Oriental Culture, University of Tokyo, 1968-04-05 [cit. 2012-10-28]. Dostupné online. (anglicky)
