Jones, W. O. (1972). Marketing staple food crops in tropical Africa. Cornell University Press.
芝加哥风格引文Jones, William O. Marketing Staple Food Crops in Tropical Africa. Ithaca [N.Y.]: Cornell University Press, 1972.
MLA引文Jones, William O. Marketing Staple Food Crops in Tropical Africa. Cornell University Press, 1972.
警告：这些引文格式不一定是100％准确.