Clegg, B. (2004). Crash course in personal development. Kogan Page ; Sterling, VA : Stylus Pub..
Cita Chicago (17th ed.)Clegg, Brian. Crash Course in Personal Development. London: Kogan Page ; Sterling, VA : Stylus Pub., 2004.
Cita MLA (8th ed.)Clegg, Brian. Crash Course in Personal Development. Kogan Page ; Sterling, VA : Stylus Pub., 2004.
Atenció: Aquestes cites poden no estar 100% correctes.