The Reverse transfer of technology : a survey of its main features, causes and policy implications : study / by the UNCTAD secretariat. United Nations Conference on Trade and Development. Secretariat. Technology transfer. T174.3 .R47 1979 382 UNR At head of title: United Nations Conference on Trade and Development, Geneva. "TD/B/C.6/47"--T.p. verso. "United Nations publication. Sales no. E.79.II.D.10"--T.p. verso. Includes bibliographical references. New York : United Nations, 1979. 1979. 1979 Text ix, 32 p. ; eng