Leo John. (1985). Use of English: Grammar practice activities for intermediate and upper-intermediate students (Student's book). Cambridge: Cambridge Univ. Press.
Styl ChicagoLeo John. Use of English: Grammar Practice Activities for Intermediate and Upper-intermediate Students (Student's Book). Cambridge: Cambridge Univ. Press, 1985.
Citace podle MLALeo John. Use of English: Grammar Practice Activities for Intermediate and Upper-intermediate Students (Student's Book). Cambridge: Cambridge Univ. Press, 1985.
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