O'Brien, P. (1992). Positive management : assertiveness for managers / Paddy O'Brien: Assertiveness for managers. Brealey Publishing.
Chicago Style (17th ed.) CitationO'Brien, Paddy. Positive Management : Assertiveness for Managers / Paddy O'Brien: Assertiveness for Managers. London: Brealey Publishing, 1992.
MLA (9th ed.) CitationO'Brien, Paddy. Positive Management : Assertiveness for Managers / Paddy O'Brien: Assertiveness for Managers. Brealey Publishing, 1992.
Warning: These citations may not always be 100% accurate.