JOHNSON, D.T THE BUSINESS OF FARMING : A GUIDE TO FARM BUSINESS MANAGEMENT IN THE TROPICS, 2ND ED. / JOHNSON, D.T - [S.N] : ELBS LONGMAN ، 1990 - 377 P Subjects--Topical Terms: TROPICAL CROPSFARM MANAGEMENTFARM INCOMEAGRICULTURE PRODUCTIVITYINCOME Dewey Class. No.: 630 / J B