Mason, H. L. (1958). Toynbee's approach to world politics [in his A study of history]. Tulane University.
Chicago-referens (17:e uppl.)Mason, Henry Lloyd. Toynbee's Approach to World Politics [in His A Study of History]. New Orleans: Tulane University, 1958.
MLA-referens (8:e uppl.)Mason, Henry Lloyd. Toynbee's Approach to World Politics [in His A Study of History]. Tulane University, 1958.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.