Sheen, F. J. (1953). Life Is Worth Living. McGraw-Hill.
Chicago-Zitierstil (17. Ausg.)Sheen, Fulton J. Life Is Worth Living. New York ; Toronto ; London: McGraw-Hill, 1953.
MLA-Zitierstil (8. Ausg.)Sheen, Fulton J. Life Is Worth Living. McGraw-Hill, 1953.
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