O'Brien, Patrick, ed. International productivity comparisons and problems of measurement, 1750-1939. Bern: International Economic History Association, [1986]?. 105 s. Research topics. Section B; 6.
Citace podle APAO'Brien, P. (1986). International productivity comparisons and problems of measurement, 1750-1939. Bern: International Economic History Association.
Styl ChicagoO'Brien, Patrick. International Productivity Comparisons and Problems of Measurement, 1750-1939. Bern: International Economic History Association, 1986.
Citace podle MLAO'Brien, Patrick. International Productivity Comparisons and Problems of Measurement, 1750-1939. Bern: International Economic History Association, 1986.
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