Cita APA (7a ed.)

Clegg Brian. (2004). Crash Course in Personal Development. Kogan Page.

Cita Chicago Style (17a ed.)

Clegg Brian. Crash Course in Personal Development. London: Kogan Page, 2004.

Cita MLA (9a ed.)

Clegg Brian. Crash Course in Personal Development. Kogan Page, 2004.