Johnson, David T. The business of farming : a guide to farm business management in the tropics / David T. Johnson. - 2nd ed. - London : ELBS/Macmillan, 1990. - v, 377 p.: ill.; 25 cm. Includes bibliographical references and index. ISBN: 0333467175 Subjects--Topical Terms: Farm management--Tropics.Agriculture--Economic aspects--Tropics. Dewey Class. No.: 658.930913