Não informado. (1948). Bulletin of the Geographical Survey Institute. Ministry of Construction.
Chicago-viite (17. p.)Não informado. Bulletin of the Geographical Survey Institute. Tokyo: Ministry of Construction, 1948.
MLA-viite (8. p.)Não informado. Bulletin of the Geographical Survey Institute. Ministry of Construction, 1948.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.