Certo, S. C. (1992). Modern management: Quality, ethics, and the global environment (5th ed.). Allyn and Bacon.

Certo, Samuel C. Modern Management: Quality, Ethics, and the Global Environment. 5th ed. Boston: Allyn and Bacon, 1992.

Certo, Samuel C. Modern Management: Quality, Ethics, and the Global Environment. 5th ed. Allyn and Bacon, 1992.