Griffin, R. (2011). Management: Principles and practices (10th Ed.). South-Western, Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Griffin, Ricky. Management: Principles and Practices. 10th Ed. Australia ; Mason, OH: South-Western, Cengage Learning, 2011.
Lua MLA (8ú heag.)Griffin, Ricky. Management: Principles and Practices. 10th Ed. South-Western, Cengage Learning, 2011.
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