Color test plates on page 18: Reproduced with permission from the Pseudoisochromatic Plate Ishihara Compatible (PIPIC) Color Vision Test 24 Plate Edition by Dr.
Тестови за далтонизам на 18. страница: Копија со дозвола на Pseudoisochromatic Plate Ishihara Compatible (PIPIC) Color Vision Test 24 Plate Edition by Dr.