Cita APA

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

Citación estilo Chicago

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

Cita MLA

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