00571nam a2200193   450000500170000000700040001700800040002102000150002502000150004004000090005505000210006410000170008524500860010225000120018830000250020050000500022565000830027570000190035820150611091238.0000000  a0582096286  a0582029031  aUOEL  aHD1415b.A2 1990  aAbbott J. C.  aAgricultural economics and marketing in the tropics /cJ. C. Abbot, J. P. Makeham  a2nd ed.  aviii, 194 p. :bill.  aIncludes bibliographical references and index  aAgricultural conomics xEconomic history and conditions (National production )  aMakeham, J. P.