Gillen, T. (1992). Assertiveness for managers. Gower.
Chicago Style (17th ed.) CitationGillen, Terry. Assertiveness for Managers. Aldershot, Hants: Gower, 1992.
MLA (9th ed.) CitationGillen, Terry. Assertiveness for Managers. Gower, 1992.
Warning: These citations may not always be 100% accurate.