Cropley, A. J. (1967). Creativity. Longmans.
Cita Chicago (17th ed.)Cropley, A. J. Creativity. [London]: Longmans, 1967.
Cita MLA (9th ed.)Cropley, A. J. Creativity. Longmans, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)