Johnson David T. (1982). The business of farming: Guide to farm business management in the tropics. Macmillan.
استشهاد بنمط شيكاغوJohnson David T. The Business of Farming: Guide to Farm Business Management in the Tropics. London: Macmillan, 1982.
MLA استشهادJohnson David T. The Business of Farming: Guide to Farm Business Management in the Tropics. Macmillan, 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.