Gorell, R. (2013). Group coaching: A practical guide to optimizing collective talent in any organization (1st Edition.). Kogan Page Ltd.
Čikaški stil citiranja (17. izdanje)Gorell, Ro. Group Coaching: A Practical Guide to Optimizing Collective Talent in Any Organization. 1st Edition. Philadelphia, PA: Kogan Page Ltd, 2013.
MLA način citiranja (9. izdanje)Gorell, Ro. Group Coaching: A Practical Guide to Optimizing Collective Talent in Any Organization. 1st Edition. Kogan Page Ltd, 2013.
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