APA (7th ed.) Zitazioa
Certo, S. C. (1989). Principles of modern management. Allyn and Bacon.
Chicago Style (17th ed.) Zitazioa
Certo, Samuel C. Principles of Modern Management. Boston: Allyn and Bacon, 1989.
MLA (9th ed.) Zitazioa
Certo, Samuel C. Principles of Modern Management. Allyn and Bacon, 1989.
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