APA
Richards J. C., Platt J. & Platt H. (1992). Longman dictionary of language teaching and applied linguistics. Essex: Longman.
Chicago
Richards Jack C, Platt John and Platt Heidi. 1992. Longman dictionary of language teaching and applied linguistics. Essex: Longman.
Harvard
Richards J. C., Platt J. and Platt H. (1992). Longman dictionary of language teaching and applied linguistics. Essex: Longman.
MLA
Richards Jack C, Platt John and Platt Heidi. Longman dictionary of language teaching and applied linguistics. Essex: Longman. 1992.