Analysis of information sources in references of the Wikipedia article "Tendency of the rate of profit to fall" in English language version.
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: CS1 maint: postscript (link){{cite web}}
: CS1 maint: archived copy as title (link). Jeffrey D. Sachs, "Wages, profits, and macroeconomic adjustment: a comparative study." [with comments by William H. Branston and Robert J. Gordon] Brookings papers of economic activity, No.2, 1979, pp. 269–319 [12]; Thomas R. Michl, "Why is the Rate of Profit Still Falling?" New York: Jerome Levy Economics Institute, Working Paper no. 7, September 1988.[13]{{cite web}}
: CS1 maint: archived copy as title (link). Jeffrey D. Sachs, "Wages, profits, and macroeconomic adjustment: a comparative study." [with comments by William H. Branston and Robert J. Gordon] Brookings papers of economic activity, No.2, 1979, pp. 269–319 [12]; Thomas R. Michl, "Why is the Rate of Profit Still Falling?" New York: Jerome Levy Economics Institute, Working Paper no. 7, September 1988.[13]{{cite web}}
: CS1 maint: archived copy as title (link). Jeffrey D. Sachs, "Wages, profits, and macroeconomic adjustment: a comparative study." [with comments by William H. Branston and Robert J. Gordon] Brookings papers of economic activity, No.2, 1979, pp. 269–319 [12]; Thomas R. Michl, "Why is the Rate of Profit Still Falling?" New York: Jerome Levy Economics Institute, Working Paper no. 7, September 1988.[13]