Weymar, F. H. (1968). The dynamics of the world cocoa market. M. I. T. Press.
芝加哥风格引文Weymar, F. Helmut. The Dynamics of the World Cocoa Market. Cambridge: M. I. T. Press, 1968.
MLA引文Weymar, F. Helmut. The Dynamics of the World Cocoa Market. M. I. T. Press, 1968.
警告：这些引文格式不一定是100％准确.