Dyfyniad APA
Wetherly, P., & Otter, D. (2011). The business environment: Themes and issues (Second edition.). Oxford University Press.
Dyfyniad Arddull Chicago
Wetherly, Paul, and Dorron Otter. The Business Environment: Themes and Issues. Second edition. New York: Oxford University Press, 2011.
Dyfyniad MLA
Wetherly, Paul, and Dorron Otter. The Business Environment: Themes and Issues. Second edition. Oxford University Press, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.