21. 西之島火山のその後の経過と最近の状況(日本火山学会 1975 年度秋季大会講演要旨)
21. Recent state of Activity in Nishinoshima, Ogasawara(Abstracts of Papers Submitted for the Meeting of the Society)

J. Ossaka, other members of Cooperative Research of Nishinoshima, Hydrographic Office
1975 Bulletin of the Volcanological Society of Japan  
doi:10.18940/kazanc.20.3_176_1 fatcat:krhvxy6nmvdlrdfeafrs4hj7ru