APA

Richards J. C., Platt J. & Platt H. (1993). Longman dictionary of language teaching and applied linguistics. England: longman.

Chicago

Richards Jack C, Platt John and Platt Heidi. 1993. Longman dictionary of language teaching and applied linguistics. England: longman.

Harvard

Richards J. C., Platt J. and Platt H. (1993). Longman dictionary of language teaching and applied linguistics. England: longman.

MLA

Richards Jack C, Platt John and Platt Heidi. Longman dictionary of language teaching and applied linguistics. England: longman. 1993.