Ekelund, R. B., Furubotn, E. G., & Gramm, P. (1972). The evolution of modern demand theory: A collection of essays. Lexington Books.
芝加哥风格引文Ekelund, Robert B., Eirik Grundtvig Furubotn, 与 Phil Gramm. The Evolution of Modern Demand Theory: A Collection of Essays. Lexington, Mass.: Lexington Books, 1972.
MLA引文Ekelund, Robert B., et al. The Evolution of Modern Demand Theory: A Collection of Essays. Lexington Books, 1972.
警告：这些引文格式不一定是100％准确.