APA

wilkins d., . (1980). linguistcs in language teaching. london: elbs & edward arnold publish . ltd.

Chicago

wilkins d.a, . 1980. linguistcs in language teaching. london: elbs & edward arnold publish . ltd.

Harvard

wilkins d., . (1980). linguistcs in language teaching. london: elbs & edward arnold publish . ltd.

MLA

wilkins d.a, . linguistcs in language teaching. london: elbs & edward arnold publish . ltd. 1980.