Παραπομπή APA
Lange, O. R. (1963). Political economy: Vol.1 General Problems,translated from Polish by A.H.Walker. Oxford: Pergamon Press.
Παραπομπή Chicago StyleLange, Oskar Richard. Political Economy: Vol.1 General Problems,translated From Polish By A.H.Walker. Oxford: Pergamon Press, 1963.
Παραπομπή MLALange, Oskar Richard. Political Economy: Vol.1 General Problems,translated From Polish By A.H.Walker. Oxford: Pergamon Press, 1963.
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