Jong, W. d. (1889). Beitrag zur Entwicklungsgeschichte der Myopie.
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Tohutoru Kātū Chicago (17th ed.)
Jong, Willem de. Beitrag Zur Entwicklungsgeschichte Der Myopie. Freiburg, 1889.
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Tohutoro MLA (9th ed.)
Jong, Willem de. Beitrag Zur Entwicklungsgeschichte Der Myopie. 1889.
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