APA (7th ed.) Citation

Harris, M., & Mower, D. (1993). World class (6th impression.). Longman.

Chicago Style (17th ed.) Citation

Harris, Michael, and David Mower. World Class. 6th impression. London [etc.]: Longman, 1993.

MLA (9th ed.) Citation

Harris, Michael, and David Mower. World Class. 6th impression. Longman, 1993.