1. Kelly, K. L., and D. B. Judd. 1955. The ISCC-NBS method of designating colors and a dictionary of color names. National Bureau of Standards Circular 553. Washington, D. C. (This publication is supplemented by the “ISCC-NBS color-name charts illustrated with centroid colors.”)
2. Maerz, A., and M. R. Paul. 1950. A dictionary of color. 2nd ed. McGraw- Hill Book Co., Inc., New York. 208 p.