Asiegbu, Johnson2007-11-122007-11-121985http://hdl.handle.net/10625/1741application/pdfenETHNIC GROUPSSOCIAL HISTORYETHNOGRAPHYTRADITIONAL TECHNOLOGYNIGERIAHISTORICAL ANALYSISMIGRATIONORAL TRADITIONTraditional African societies and indigenous technology : a case study of the Umuahia - Igbo communities of South Eastern NigeriaWorking Paper