Niebuhr, R. (1929). Leaves from the notebook of a tamed cynic. Willett, Clark & Colby.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNiebuhr, Reinhold. Leaves from the Notebook of a Tamed Cynic. Chicago, New York: Willett, Clark & Colby, 1929.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNiebuhr, Reinhold. Leaves from the Notebook of a Tamed Cynic. Willett, Clark & Colby, 1929.
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