00666cam a2200181 a 4500 0821325310 633.68072 WIG D Wigg, David, 44570 The quiet revolutionaries : a look at the campaign by agricultural scientists to fight hunger ... and how the much-neglected cassava could help / David Wigg ; foreword by W. David Hopper. Washington, D.C. : World Bank, c1993. iv, 47 p. : ill. ; 25 cm. 0 0 0 633_680720000000000_WIG Cassava Research. 44571 Cassava. 44572 MCE 379 World Bank. 4999 ddc BK 548328 548328 0 0 ddc 0 0 MCE MCE 2014-08-27 0 633.68072 WIG MCE-43086 2014-08-27 2014-08-27 BK