More water for arid lands : promising technologies and research opportunities : report of an ad hoc panel of the Advisory Committee on Technology Innovation, Board on Science and Technology for International Development, Commission on International Relations / National Academy of Sciences, Washington, D.C. Advisory Committee on Technological Innovation. United States. Agency for International Development. Office of Science and Technology. Water-supply. Water conservation. Water-supply, Agricultural. Arid regions. TD353 .N37 1974 553.7 MOR Introduction and summary in English, Arabic, French, and Spanish. "Prepared ... for the Office of Science and Technology, Bureau for Technical Assistance, Agency for International Development, Washington, D.C." Includes bibliographies. Washington : National Academy of Sciences, c1974. c1974. 1974 Text vii, 153 p. : eng eng arafrespa