J. P. Tarcher, Inc., Los Angeles, 1974.

Munsell, A. H.,

A Color Notation,

Munsell Color Co., Baltimore, 1926.

Munsell, A. H.,

A Grammar of Color,

edited and annotated by Faber Birren, Van Nostrand Reinhold Co., New York, 1969.

Newton, Sir Isaac,

Opticks,

William Innys, London, 1730 (reprinted by G. Bell & Sons, London, 1931).

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