Silwembe, Andrew Mwalimu Unification of geodetic datum in international boundaries : a case study of Malawi, Mozambique and Zambian boundaries / Andrew Mwalimu Silwembe. - Lusaka : University of Zambia 2019. - xiv, 95 pages : illustrations. Includes bibliographical references. Subjects--Topical Terms: Geodetic Datum.Interanational Terrestrial Reference Frame.