Kuehni, R. G. (2005). Color: An introduction to practice and principles. New Jersey: John Wiley and Sons.
Dyfyniad Arddull ChicagoKuehni, Rolf G. Color: An Introduction to Practice and Principles. New Jersey: John Wiley and Sons, 2005.
Dyfyniad MLAKuehni, Rolf G. Color: An Introduction to Practice and Principles. New Jersey: John Wiley and Sons, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.