The a look at the campaign by agricultural scientists to fight hunger ... and how the much-neglected cassava could help Wigg, David creator World Bank text Washington, D.C World Bank c1993 monographic iv, 47 p. : ill. ; 25 cm. David Wigg ; foreword by W. David Hopper. 0 0 0 633_680720000000000_WIG Cassava Research Cassava MCE 633.68072 WIG 0821325310