ROBBINS, S. P. (2002). Management ed.7/Stephen P. Robbins, Mary Coulter. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)ROBBINS, Stephen P. Management Ed.7/Stephen P. Robbins, Mary Coulter. Prentice Hall, 2002.
Lua MLA (8ú heag.)ROBBINS, Stephen P. Management Ed.7/Stephen P. Robbins, Mary Coulter. Prentice Hall, 2002.
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