"Color Vision Defects Congresses." . . "Color Perception Tests." . . "Vision des couleurs Congrès Congrès." . . "Color Perception Tests Congresses." . . . . "Colour vision deficiencies VII : proceedings of the Seventh Symposium of the International Research Group on Colour Vision Deficiencies held at Centre médical universitaire, Geneva, Switzerland, 23-25 June 1983" . . . . . . "Proceedings of the Seventh Symposium of the International Research Group on Colour Vision Deficiencies Held at Centre Medical Universitaire, Geneva, Switzerland, 23-25 June, 1983" . . . . . "Colour vision deficiencies VII : proceedings of the 7th symposium of the international research group on colour vision deficiencies held at Centre Médical Universitaire, Geneva, Switzerland, 23-25 June 1983" . . . . . . . . . "Colour Vision Deficiencies VII Proceedings of the Seventh Symposium of the International Research Group on Colour Vision Deficiencies held at Centre Médical Universitaire, Geneva, Switzerland, 23-25 June 1983" . . . . . . . "Colour vision deficiencies VII : proceedings of the seventh symposium of the International Research Group on Colour Vision Deficiencies held at Centre Médical Universitaire, Geneva, Switzerland, 23-25 June 1983" . . . "Electronic books" . . "Symposium of the International Research Group on Colour Vision Deficiencies (4 1983.06.23-25 Geneva)" . . . "International Research Group on Colour Vision Deficiencies. Symposium" . . "Color Perception." . . "Color Perception Congresses." . . "Achromatopsie Diagnostic Congrès." . . "Color Vision Defects." . .