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A study of the spectral complementaries. I. Individual variations of the normal color-sense II.Subjective saturation of spectral colors.. (1923)
Sinden, Roger Hull, 1895- · Baltimore, [Md.] · leaf 109
o' o r \qure ci ,Color vision · Color
Internet Archive · The Johns Hopkins University Sheridan Libraries · Public domain (published before 1931). Free to use for anything.
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