Harris, P. R. (1989). High performance leadership: Strategies for maximum career productivity. Scott, Foresman.
Lua i Stíl Chicago (17ú heag.)Harris, Philip R. High Performance Leadership: Strategies for Maximum Career Productivity. Glenview, Ill: Scott, Foresman, 1989.
Lua MLA (9ú heag.)Harris, Philip R. High Performance Leadership: Strategies for Maximum Career Productivity. Scott, Foresman, 1989.
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