Theories of surplus value : (volume IV of Capital) / Karl Marx ; [translated by Emile Burns ; edited by S. Ryazanskaya]. Theorien über den Mehrwert. English Marx, Karl. Ryazanskaya, S.W jt. ed. Dixon,Richard jt. ed. Economics 330.16 MAT Translated from the German by Jack Cohen and S. W. Ryazanskaya Includes bibliographical references and indexes. Moscow : Progress , 1971 1971 1971 Text v. ; eng engger