00343nam a2200109Ia 450000500170000008000190001724501180003626000260015430000260018050000080020658300190021420260716043048.0  a07.07.06 F6861  aReport of the Workshop on Research and Production of Tropical Root and Tuber Crops : yams and cassava development  bFAOaSantiagoCLc1987  a1 v. (various pagings  aIDS  c3/7/00kM2LMGR