Geodetic network project in Niger and progress made in cartography since 1966

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1973-03Author(s)/Corporate Author (s)
United Nations. Economic Commission for Africa;United Nations. Economic and Social Council;
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This document contains information on the Geodetic network project in Niger and progress made in cartography since 1966, which took place in Addis Ababa, Ethiopia, from the 30th of October until 10 November 1972.