Watson, E. R. (1918). Colour in relation to chemical constitution. Longmans, Green and Co..
Dyfyniad Arddull ChicagoWatson, Edwin Roy. Colour in Relation to Chemical Constitution. London, New York [etc.]: Longmans, Green and Co., 1918.
Dyfyniad MLAWatson, Edwin Roy. Colour in Relation to Chemical Constitution. Longmans, Green and Co., 1918.
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