Lilley, R. C. (2019). Dealing with difficult people: Fast, effective strategies for handling problem people (Fourth Edition.). Kogan Page Ltd.
Chicago-referens (17:e uppl.)Lilley, Roy C. Dealing with Difficult People: Fast, Effective Strategies for Handling Problem People. Fourth Edition. New York: Kogan Page Ltd, 2019.
MLA-referens (9:e uppl.)Lilley, Roy C. Dealing with Difficult People: Fast, Effective Strategies for Handling Problem People. Fourth Edition. Kogan Page Ltd, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.