Steinmetz, W. (2012). Some thoughts on a history of Twentieth-Century German basic concepts: Willibald Steinmetz. Contributions to the history of concepts.
Chicago-referens (17:e uppl.)Steinmetz, Willibald. "Some Thoughts on a History of Twentieth-Century German Basic Concepts: Willibald Steinmetz." Contributions to the History of Concepts 2012.
MLA-referens (8:e uppl.)Steinmetz, Willibald. "Some Thoughts on a History of Twentieth-Century German Basic Concepts: Willibald Steinmetz." Contributions to the History of Concepts, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.