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| Utgitt
| New York : Springer Pub. Co , 1973
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| Omfang
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| Opplysninger
| Based upon selected symposia of the Division on Adult Development and Aging at the 76th and 78th annual meetings of the American Psychological Association, 1968 and 1970.. - Bibliography: p. 155-172.
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| Emner
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| ISBN
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