Cita APA (7a ed.)
Vernon, P. E., Bernstein, J., & Thorndike, R. L. (1968). The measurement of abilities.
Cita estilo Chicago (17a ed.)
Vernon, Philip E., Jaime Bernstein, y Robert L. Thorndike. The Measurement of Abilities. 1968.
Cita MLA (9a ed.)
Vernon, Philip E., et al. The Measurement of Abilities. 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.