Kitekei'aho, Fuka. High resolution seismic survey for lagoonal sand and gravel resources in Tongatapu, Kingdom of Tonga / by Fuka Kitekei'aho and John R. Harper. - Suva : CCOP/SOPAC, 1989. - 30 p. : ill. - CCOP/SOPAC technical report ; 85. . Bibliographic references included. LCCN: 92013067 Subjects--Topical Terms: Sand--Economic Aspects.Gravel--Economic aspects.CCOP/SOPAC cruise report.