Natural resources, conflict, and sustainable developmentOkechukwu Ukaga · First published 2012Open the Tome
Sustainable development in AfricaOkechukwu Ukaga, Osita George Afoaku · First published 2004Open the Tome
Renewing the countryside--IowaMark Ritchie, Beth Waterhouse, Okechukwu Ukaga · First published 2002Open the Tome
Renewing the countrysideJan Joannides, Sara Bergan, Mark Ritchie, Beth Waterhouse, Okechukwu Ukaga · First published 2001Open the Tome
