APA

Powell M., . (2010). In Company. Upper Intermediate. Oxford: Macmillan.

Chicago

Powell M, . 2010. In Company. Upper Intermediate. Oxford: Macmillan.

Harvard

Powell M., . (2010). In Company. Upper Intermediate. Oxford: Macmillan.

MLA

Powell M, . In Company. Upper Intermediate. Oxford: Macmillan. 2010.