Ekelund, R. B., Furubotn, E. G., & Gramm, P. (1972). The evolution of modern demand theory: A collection of essays. Lexington Books.
Čikaški stil citiranja (17. izdanje)Ekelund, Robert B., Eirik Grundtvig Furubotn, i Phil Gramm. The Evolution of Modern Demand Theory: A Collection of Essays. Lexington, Mass.: Lexington Books, 1972.
MLA način citiranja (8. izdanje)Ekelund, Robert B., et al. The Evolution of Modern Demand Theory: A Collection of Essays. Lexington Books, 1972.
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