APA (7 वां संस्करण) प्रशस्ति पत्र
Crocker, L. G. (1959). An Age of Crisis: Man and World in Eighteenth Century French Thought. Johns Hopkins Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Crocker, Lester G. An Age of Crisis: Man and World in Eighteenth Century French Thought. Baltimore: Johns Hopkins Press, 1959.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Crocker, Lester G. An Age of Crisis: Man and World in Eighteenth Century French Thought. Johns Hopkins Press, 1959.
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