Nisbet, R. (1980). History of the Idea of Progress. the Eastern house.
Cita Chicago (17th ed.)Nisbet, Robert. History of the Idea of Progress. New York: the Eastern house, 1980.
Cita MLA (9th ed.)Nisbet, Robert. History of the Idea of Progress. the Eastern house, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.