00272    a2200109   4500020001500000082001500015100001500030245004400045260003400089300002000123650001900143  a0851987842  a636.4bSER  aSerres, H.  aManual of pig production in the tropics  aWallingfordbCABIc1992g1999  axxi,262p.c24cm  aPig Production