Clark, C. M. (1995). Thoughtful teaching. Teachers College Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClark, Christopher M. Thoughtful Teaching. New York: Teachers College Press, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रClark, Christopher M. Thoughtful Teaching. Teachers College Press, 1995.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.