edited by G.N. Rassam, J. Gravesteijn, R. Potenza ; sponsored by the International Council of Scientific and Technical Information (ICSTI) and International Union of Geological Sciences (IUGS)
edited by G.N. Rassam, J. Gravesteijn, R. Potenza ; sponsored by the International Council of Scientific and Technical Information (ICSTI) and International Union of Geological Sciences (IUGS)