Woodhouse, M. B. (1990). A preface to philosophy (4th ed.). Wadsworth Publishing Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWoodhouse, Mark B. A Preface to Philosophy. 4th ed. California: Wadsworth Publishing Company, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWoodhouse, Mark B. A Preface to Philosophy. 4th ed. Wadsworth Publishing Company, 1990.
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