Committee for Co-ordination of Joint Prospecting for Mineral Resources in South Pacific Offshore Areas (CCOP/SOPAC) : proceedings of the Twelfth Session, Nuku'alofa, Tonga, 11-20 October 1983, including Report of the Twelfth Session of its Technical Advisory Group... - Eade, J. V. (CCOP/SOPAC Technical Secretariat, 1984)