Chapman, L. (1967). English grammar and exercises: Book Four: For secondary classes. Longman.
Chicago Style (17. basım) AtıfChapman, L.R.H. English Grammar and Exercises: Book Four: For Secondary Classes. London: Longman, 1967.
MLA (9th ed.) AtıfChapman, L.R.H. English Grammar and Exercises: Book Four: For Secondary Classes. Longman, 1967.
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