APA ציטוט

Dubicka, I., & O'Keeffe, M. (2003). English for international tourism: Pre-Intermediate : Workbook. England: Longman.

Trích dẫn kiểu Chicago

Dubicka, Iwonna., và Margaret O'Keeffe. English for International Tourism: Pre-Intermediate : Workbook. England: Longman, 2003.

ציטוט MLA

Dubicka, Iwonna., và Margaret O'Keeffe. English for International Tourism: Pre-Intermediate : Workbook. England: Longman, 2003.