Byrne, D. (1965). The elements of indirect speech in tables and exercises. Longmans, Green and Co. Ltd.
Chicago Style (17th ed.) ZitazioaByrne, Donn. The Elements of Indirect Speech in Tables and Exercises. Londres: Longmans, Green and Co. Ltd, 1965.
MLA (9th ed.) ZitazioaByrne, Donn. The Elements of Indirect Speech in Tables and Exercises. Longmans, Green and Co. Ltd, 1965.
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