Menger, Carl. “Economic As a Theoretical Science and Its Relationship to the Historical and Pratical Economic Sciences – Part 2”. MISES: Interdisciplinary Journal of Philosophy, Law and Economics 2, no. 1 (June 1, 2014): 55–67. Accessed September 13, 2025. https://www.misesjournal.org.br/misesjournal/article/view/577.