Cita APA (7th ed.)

Vernon, P. E. (1970). Creativity: Selected readings. Penguin Books.

Cita Chicago (17th ed.)

Vernon, Philip E. Creativity: Selected Readings. Harmondsworth: Penguin Books, 1970.

Cita MLA (9th ed.)

Vernon, Philip E. Creativity: Selected Readings. Penguin Books, 1970.