Colour vision deficiencies XII : proceedings of the twelfth symposium of the International Research Group on Colour Vision Deficiencies, held in Tübingen, Germany, July 18-22, 1993 / ed. by B. Drum ; with associate ed.: A.J. Adams ... [et al.]

Colour vision deficiencies XII : proceedings of the twelfth symposium of the International Research Group on Colour Vision Deficiencies, held in Tübingen, Germany, July 18-22, 1993 / ed. by B. Drum ; with associate ed.: A.J. Adams ... [et al.]