Cita APA

Hutchinson, T., & Flamm, J. (1997). American hotline intermediate workbook. New York: Oxford University Press.

Citación estilo Chicago

Hutchinson, Tom, y Jacqueline Flamm. American Hotline Intermediate Workbook. New York: Oxford University Press, 1997.

Cita MLA

Hutchinson, Tom, y Jacqueline Flamm. American Hotline Intermediate Workbook. New York: Oxford University Press, 1997.