LESLEY, P. (1985). Overcoming opposition: A survival manual for executives. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)LESLEY, Phillip. Overcoming Opposition: A Survival Manual for Executives. New Jersey: Prentice-Hall, 1985.
Lua MLA (9ú heag.)LESLEY, Phillip. Overcoming Opposition: A Survival Manual for Executives. Prentice-Hall, 1985.
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