Cita APA (7a ed.)

Wright, W. D. (1969). The measurement of colour (4th ed.). Hilger.

Cita Chicago Style (17a ed.)

Wright, W. D. The Measurement of Colour. 4th ed. London: Hilger, 1969.

Cita MLA (9a ed.)

Wright, W. D. The Measurement of Colour. 4th ed. Hilger, 1969.