Herbert Langfeld

Herbert Sidney Langfeld (July 24, 1879 – February 25, 1958) was an American psychologist and a past president of the American Psychological Association (APA). Provided by Wikipedia
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  1. 1
    An elementary laboratory course in psychology /
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  2. 2
    An elementary laboratory course in psychology /
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  3. 3
    The s̆thetic attitude /
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  4. 4
    Psychology : a factual textbook /
    Other Authors: “...Langfeld, Herbert Sidney, 1879-1958...”
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  5. 5
    Introduction to psychology /
    Published 1939
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  6. 6
    A study of prolonged fasting /
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