Aiken, H. D. (1956). The age of ideology: The 19th Century philosophers / selected, with introduction an interpretive commentary by Henry D. Aiken (1. Aufl.). The New American Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAiken, Henry D. The Age of Ideology: The 19th Century Philosophers / Selected, with Introduction an Interpretive Commentary by Henry D. Aiken. 1. Aufl. New York: The New American Library, 1956.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAiken, Henry D. The Age of Ideology: The 19th Century Philosophers / Selected, with Introduction an Interpretive Commentary by Henry D. Aiken. 1. Aufl. The New American Library, 1956.
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