APA (7th ed.) Citation

Vernon, P. E. (1956). The measurement of abilities (2nd ed.). University of London Press.

Chicago Style (17th ed.) Citation

Vernon, Philip Ewart. The Measurement of Abilities. 2nd ed. London: University of London Press, 1956.

MLA (9th ed.) Citation

Vernon, Philip Ewart. The Measurement of Abilities. 2nd ed. University of London Press, 1956.