00581     2200181   4500001002100000008004100021035002000062245009600082100002700178260003400205300005700239020002300296084001500319082001100334650001800345650001600363990002000379INLIS000000000011320                                   Ind    a0010-1118011320  aFertility of soils : a future farming in the West African savannahcPIERI, Christion J.M.G.  aChristian J.M.G. Pieri  aBerlinbSpringer-verlagc1992  axvi, 348 p.: ill.; 23 cm.cxvi, 348 p.: ill.; 23 cm.  aISBN 3-540-53283-8  a631.45PIEf  a631.45  aSOIL FETILITY  aWEST AFRICA  a256/96-mfn13103