Parker, C. (2003). Developing management skills for leadership Chris Parker, Brian Stone. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Parker, Chris. Developing Management Skills for Leadership Chris Parker, Brian Stone. Prentice Hall, 2003.
Lua MLA (8ú heag.)Parker, Chris. Developing Management Skills for Leadership Chris Parker, Brian Stone. Prentice Hall, 2003.
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