Kremer, M. (1997). Why are worker cooperatives so raren. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Kremer, Michael. Why Are Worker Cooperatives so Raren. Cambridge: National Bureau of Economic Research, 1997.
Lua MLA (9ú heag.)Kremer, Michael. Why Are Worker Cooperatives so Raren. National Bureau of Economic Research, 1997.
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