SUMMERFIELD, G. e. (1971). English in practice secondary English departments: At work ed. C.U.P.
Citace podle Chicago (17th ed.)SUMMERFIELD, Geoffrey ed. English in Practice Secondary English Departments: At Work Ed. London: C.U.P, 1971.
Citace podle MLA (9th ed.)SUMMERFIELD, Geoffrey ed. English in Practice Secondary English Departments: At Work Ed. C.U.P, 1971.
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