Mahdi, M. (1964). Ibn Khaldun's philosophy of history: A study in the philosophic foundation of the science of culture. University of Chicago Press.
Chicago-viite (17. p.)Mahdi, Muhsin. Ibn Khaldun's Philosophy of History: A Study in the Philosophic Foundation of the Science of Culture. [Chicago]: University of Chicago Press, 1964.
MLA-viite (9. p.)Mahdi, Muhsin. Ibn Khaldun's Philosophy of History: A Study in the Philosophic Foundation of the Science of Culture. University of Chicago Press, 1964.
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