00350    a2200121   4500020001500000082001700015100001800032245004700050260005100097300002100148650004100169700001800210  a0521308941  a630.681bMAK  aMakeham, J.P.  aThe economics of tropical farm management   aNew DelhibOxford & IBH Publishingc1986g1986  a[ix],178p.c25cm  aAgriculture and related technologies  aMalcolm, L.R.