Krathwohl, D. R. (1974). Taxonomy of educational objectives: The classification of educational goals. David McKay.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrathwohl, David R. Taxonomy of Educational Objectives: The Classification of Educational Goals. New York: David McKay, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKrathwohl, David R. Taxonomy of Educational Objectives: The Classification of Educational Goals. David McKay, 1974.
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