prepared by a Joint Working Party of the Scientific Committee on Oceanic Research (ICSU), the Advisory Committee on Marine Resources Research (FAO) and the Advisory Group on Oceanic Research (WMO) ; Ponza and Rome, 29 April to 7 May 1969
organized by the University of Newcastle upon Tyne (U.K.) and sponsored by the World Meteorological Organization and the International Association of Hydrological Sciences, Newcastle upon Tyne, 19-23 August 1974