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Back to the future : U.S. Government policy toward environmentally critical technology

Transforming technology : an agenda for environmentally sustainable growth in the 21st Century

Water quality, monitoring survey in Queen Salote Wharf area, Nuku'alofa, Tongatapu, Kingdom of Tonga

Cruise report : Tongatapu sand inventory - investigation of intertidal and shallow water areas, North coast, Tongatapu, 11-23 September, 1982