APA (7th ed.) Citation

Bell, J., & Gower, R. First certificat expert. Longman [u.a.].

Chicago Style (17th ed.) Citation

Bell, Jan, and Roger Gower. First Certificat Expert. Harlow: Longman [u.a.].

MLA (9th ed.) Citation

Bell, Jan, and Roger Gower. First Certificat Expert. Longman [u.a.].