APA

Hughes J., . (2008). Business Result. Upper-Intermediate. New York: Oxford University Press.

Chicago

Hughes J, . 2008. Business Result. Upper-Intermediate. New York: Oxford University Press.

Harvard

Hughes J., . (2008). Business Result. Upper-Intermediate. New York: Oxford University Press.

MLA

Hughes J, . Business Result. Upper-Intermediate. New York: Oxford University Press. 2008.