Coleman, J. R. (1968). Comparative economic systems: An inquiry approach. Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Coleman, John R. Comparative Economic Systems: An Inquiry Approach. New York: Holt, Rinehart and Winston, 1968.
Lua MLA (9ú heag.)Coleman, John R. Comparative Economic Systems: An Inquiry Approach. Holt, Rinehart and Winston, 1968.