Sorell, W. (1974). Hermann Hesse: The man who sought and found himself. Wolff.
Chicago-viite (17. p.)Sorell, Walter. Hermann Hesse: The Man Who Sought and Found Himself. London: Wolff, 1974.
MLA-viite (8. p.)Sorell, Walter. Hermann Hesse: The Man Who Sought and Found Himself. Wolff, 1974.
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