Stillings pseudo-isochromatische Tafeln zur Prüfung des Farbensinnes (1922)

Stilling, J. (Jakob), 1842-1915 author · Leipzig : Georg Thieme · leaf 58

Color Vision Defects -- diagnosis · Vision Tests

Internet Archive · U.S. National Library of Medicine · Public domain (published before 1931). Free to use for anything.

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