Dyfyniad APA

Hobbs, M., & Keddle, J. S. (2006). Commerce: Student's book. New York: Oxford University Press.

Dyfyniad Arddull Chicago

Hobbs, Martyn, và Julia Starr Keddle. Commerce: Student's Book. New York: Oxford University Press, 2006.

Dyfyniad MLA

Hobbs, Martyn, và Julia Starr Keddle. Commerce: Student's Book. New York: Oxford University Press, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.