7Bornstein M H, Kessen W, Weiskop S. The categories of hue in infancy. Science, 1975, 161:202-201
8Bornstein M H, Kessen W, Weiskop S. Color vision and hue categorization in young human infants. Journal of Experimental Psychology, 1976, (2): 115-120
9Lin Zhongxian. Color naming and perceptual discriminaiton of Chinese preschool children. Issues in cognition of a joint conference in psychology, NAS/CAS, Washington, DC. 1984. 221-225
10Preyer, W. The senses and the will. D. Appleton and Company,N. Y, 1905. 4-14
