APA (7th ed.) Citation

Bell, J., & Gower, R. (1992). Upper intermediate matters: Students' book. Longman.

Chicago Style (17th ed.) Citation

Bell, Jan, and Roger Gower. Upper Intermediate Matters: Students' Book. Harlow: Longman, 1992.

MLA (9th ed.) Citation

Bell, Jan, and Roger Gower. Upper Intermediate Matters: Students' Book. Longman, 1992.