EKELUND, R. B., & HEBERT, R. F. (2002). A history of economic theory and method.-- ed.4. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)EKELUND, Robert B., agus Robert F. HEBERT. A History of Economic Theory and Method.-- Ed.4. New York: McGraw-Hill, 2002.
Lua MLA (9ú heag.)EKELUND, Robert B., agus Robert F. HEBERT. A History of Economic Theory and Method.-- Ed.4. McGraw-Hill, 2002.
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