APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.