Samuelson, Paul A. (1958): «An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money», Journal of Political Economy, 66(6), s. 467, 481-482 (PDF). Arkivert (PDF) den 20. juli 2011
web.archive.org
Samuelson, Paul A. (1958): «An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money», Journal of Political Economy, 66(6), s. 467, 481-482 (PDF). Arkivert (PDF) den 20. juli 2011