Vorlesungen ueber Nationaloekonomie auf Grundlage des Marginalprinzipes, vom Verfasser durchgesehene Uebersetzung von Margarethe Langfeldt (Jena: Gustav Fischer, 1913-1922). 2 Vols. http://oll2.libertyfund.org/titles/1752,
A two volume set of lectures given by Wicksell. He bases his ideas on the idea of the marginal principle and covers topics such as population, value, production and distribution, and the growth of capital. It is in German.
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