Download or read book An Economic History of Tropical Africa: The pre-colonial period written by Zbigniew A. Konczacki and published by Psychology Press. This book was released on 1977 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: These articles cover: early agricultural development; history of agricultural crops; patterns of land use and tenure; introduction and use of metals; economic and technological aspects of the Iron Age; patterns of trade; trade routes and centres; and media of exchange.