Hardingham, A. (2005). The Coach's coach: Personal development for personal developers. Jaico.
Chicago-viite (17. p.)Hardingham, Alison. The Coach's Coach: Personal Development for Personal Developers. Mumbai, India: Jaico, 2005.
MLA-viite (9. p.)Hardingham, Alison. The Coach's Coach: Personal Development for Personal Developers. Jaico, 2005.
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