Sengbush, R. L. (Ray L.), 1921-Alazar, Tesfalul2022-05-242022-05-241987https://hdl.handle.net/11124/13353Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Seismology -- EthiopiaGeology -- EthiopiaSeismic prospecting -- EthiopiaText