Krathwohl, D. R. (1974). Taxonomy of educational objectives: The classification of educational goals. David McKay.
芝加哥风格引文Krathwohl, David R. Taxonomy of Educational Objectives: The Classification of Educational Goals. New York: David McKay, 1974.
MLA引文Krathwohl, David R. Taxonomy of Educational Objectives: The Classification of Educational Goals. David McKay, 1974.
警告：这些引文格式不一定是100％准确.