Allen, E. (1955). How to write & speak effective english. Fawcett.
Chicago Style (17. basım) AtıfAllen, Edwards. How to Write & Speak Effective English. New York: Fawcett, 1955.
MLA (9th ed.) AtıfAllen, Edwards. How to Write & Speak Effective English. Fawcett, 1955.
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