Cita APA

Harding, K., & Taylor, L. (2007). International express: Student's book : Upper-Intermediate. New York: Oxford University Press.

Citación estilo Chicago

Harding, Keith., y Liz Taylor. International Express: Student's Book : Upper-Intermediate. New York: Oxford University Press, 2007.

Cita MLA

Harding, Keith., y Liz Taylor. International Express: Student's Book : Upper-Intermediate. New York: Oxford University Press, 2007.