Dubicka, I., & O'Keeffe, M. (2003). English for international tourism: Pre-Intermediate : Students' book. England: Longman.
Trích dẫn kiểu ChicagoDubicka, Iwonna., và Margaret O'Keeffe. English for International Tourism: Pre-Intermediate : Students' Book. England: Longman, 2003.
MLA citiranjeDubicka, Iwonna., và Margaret O'Keeffe. English for International Tourism: Pre-Intermediate : Students' Book. England: Longman, 2003.
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