APA (7th ed.) Citation

(1989). Research in the language classroom. Modern English Publ. [u.a.].

Chicago Style (17th ed.) Citation

Research in the Language Classroom. London [u.a.]: Modern English Publ. [u.a.], 1989.

MLA (9th ed.) Citation

Research in the Language Classroom. Modern English Publ. [u.a.], 1989.