Frankenstein, C. (1979). They think again: Restoring cognitive abilities through teaching. Van Nostrand Reinhold.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrankenstein, Carl. They Think Again: Restoring Cognitive Abilities Through Teaching. New York: Van Nostrand Reinhold, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFrankenstein, Carl. They Think Again: Restoring Cognitive Abilities Through Teaching. Van Nostrand Reinhold, 1979.
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