Creel, R. E. (2001). Thinking philosophically: An introduction to critical reflection and rational dialogue. Blackwell.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCreel, Richard E. Thinking Philosophically: An Introduction to Critical Reflection and Rational Dialogue. Malden, Mass.: Blackwell, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCreel, Richard E. Thinking Philosophically: An Introduction to Critical Reflection and Rational Dialogue. Blackwell, 2001.
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