Gould, R. L. (1979). Transformations: Growth and change in adult life. Simon & Schuster.
Chicago-čujuhus (17. p.)Gould, Roger L. Transformations: Growth and Change in Adult Life. New York: Simon & Schuster, 1979.
MLA-čujuhus (9. p.)Gould, Roger L. Transformations: Growth and Change in Adult Life. Simon & Schuster, 1979.
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