00310nam a2200133Ia 450000500170000008000180001724500440003526000260007930000150010550000080012058300190012894200120014799900170015920260716043043.0  a03.02.03 S727  aFood, agriculture and natural resources  bSADCCaArushaTZc1988  aiv, 174 p.  aIDS  c3/7/00kM2LMGR  cMmS727  c39438d39438