Não informado. (1980). History of Political Thought. Imprint Academic.
Chicago-Zitierstil (17. Ausg.)Não informado. History of Political Thought. Exeter, Inglaterra: Imprint Academic, 1980.
MLA-Zitierstil (8. Ausg.)Não informado. History of Political Thought. Imprint Academic, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.