APA (7th ed.) Citation

Watson, E. R. (1918). Colour in relation to chemical constitution. Longmans, Green and Co..

Chicago Style (17th ed.) Citation

Watson, Edwin Roy. Colour in Relation to Chemical Constitution. London, New York [etc.]: Longmans, Green and Co., 1918.

MLA (8th ed.) Citation

Watson, Edwin Roy. Colour in Relation to Chemical Constitution. Longmans, Green and Co., 1918.