00314nam a2200097Ia 4500080001900000245011800019260002600137300002600163500000800189583001900197  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