Certo, S. C. (1997). Modern management: Diversity, quality, ethics, and the global environment (Seventh edition.). Prentice-Hall International, Inc.
Lua i Stíl Chicago (17ú heag.)Certo, Samuel C. Modern Management: Diversity, Quality, Ethics, and the Global Environment. Seventh edition. Upper Saddle River, New Jersey: Prentice-Hall International, Inc, 1997.
Lua MLA (9ú heag.)Certo, Samuel C. Modern Management: Diversity, Quality, Ethics, and the Global Environment. Seventh edition. Prentice-Hall International, Inc, 1997.
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