Die Diagnose der praktisch wichtigen angeborenen Störungen des Farbensinnes / von Wilibald A. Nagel.
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Die Diagnose der praktisch wichtigen angeborenen Störungen des Farbensinnes / von Wilibald A. Nagel. Credit: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London). Public Domain Mark