Chapman, L. (1967). English grammar and exercises: Book Four: For secondary classes. Longman.
Chicago-viite (17. p.)Chapman, L.R.H. English Grammar and Exercises: Book Four: For Secondary Classes. London: Longman, 1967.
MLA-viite (9. p.)Chapman, L.R.H. English Grammar and Exercises: Book Four: For Secondary Classes. Longman, 1967.
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