APA (7th ed.) Citation

Wright, W. D. (1967). The rays are not coloured; essays on the science of vision and colour. Adam Hilger.

Chicago Style (17th ed.) Citation

Wright, William D. The Rays Are Not Coloured; Essays on the Science of Vision and Colour. London: Adam Hilger, 1967.

MLA (9th ed.) Citation

Wright, William D. The Rays Are Not Coloured; Essays on the Science of Vision and Colour. Adam Hilger, 1967.