Berlin, I., & Hardy, . H. (2006). Political ideas in the romantic age: Their rise and influence on modern thought. Princeton University Press.
Chicago-referens (17:e uppl.)Berlin, Isaiah, och Henry Hardy. Political Ideas in the Romantic Age: Their Rise and Influence on Modern Thought. New Jerssey: Princeton University Press, 2006.
MLA-referens (9:e uppl.)Berlin, Isaiah, och Henry Hardy. Political Ideas in the Romantic Age: Their Rise and Influence on Modern Thought. Princeton University Press, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.