Hussey, D. (1996). Coaching and Counselling Skills. Kogan Page in association with Harbridge Consulting Group.
Lua i Stíl Chicago (17ú heag.)Hussey, David. Coaching and Counselling Skills. London: Kogan Page in association with Harbridge Consulting Group, 1996.
Lua MLA (8ú heag.)Hussey, David. Coaching and Counselling Skills. Kogan Page in association with Harbridge Consulting Group, 1996.
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