Cita APA (7a ed.)

Vernon, P. E. (1961). The structure of human abilities. John Wiley.

Cita Chicago Style (17a ed.)

Vernon, Philip E. The Structure of Human Abilities. London: John Wiley, 1961.

Cita MLA (9a ed.)

Vernon, Philip E. The Structure of Human Abilities. John Wiley, 1961.