APA (7th ed.) Citation

Harris M. Michael, Mower D. Dawid, & Sikorzynska A. Anna. (2004). Opportunities. Upper Intermediate (5th ed.). Harlow, Longman, 2004.

Chicago Style (17th ed.) Citation

Harris M. Michael, Mower D. Dawid, and Sikorzynska A. Anna. Opportunities. Upper Intermediate. 5th ed. Harlow, Longman, 2004, 2004.

MLA (9th ed.) Citation

Harris M. Michael, et al. Opportunities. Upper Intermediate. 5th ed. Harlow, Longman, 2004, 2004.