Hardingham, A. (2005). The Coach's coach: Personal development for personal developers. Jaico.
Cita Chicago (17th ed.)Hardingham, Alison. The Coach's Coach: Personal Development for Personal Developers. Mumbai, India: Jaico, 2005.
Cita MLA (9th ed.)Hardingham, Alison. The Coach's Coach: Personal Development for Personal Developers. Jaico, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.