Gestalt

Liveright Publishing Corp., New York, 1947.

Koran of Mohammed,

translated by George Sale, Regan Publishing Corp., Chicago, 1921.

Kouwer, B. J.,

Colors and Their Character,

Martinus Nijhoff, The Hague, 1949.

Kovacs, Richard,

Electrotherapy and Light Therapy,

Lea & Febiger, Philadelphia, 1935.

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