CLARKE, D. W. (1957). Modern English practice: ; exercises in English. Longman.
Chicago-čujuhus (17. p.)CLARKE, D. Waldo. Modern English Practice: ; Exercises in English. London: Longman, 1957.
MLA-čujuhus (9. p.)CLARKE, D. Waldo. Modern English Practice: ; Exercises in English. Longman, 1957.
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