World University service of Canada. (2005). Picturing the past - An Esp textbook for history students in Vietnam. Hà Nội: Thế giới.
Styl ChicagoWorld University service of Canada. Picturing the Past - An Esp Textbook for History Students in Vietnam. Hà Nội: Thế giới, 2005.
Citace podle MLAWorld University service of Canada. Picturing the Past - An Esp Textbook for History Students in Vietnam. Hà Nội: Thế giới, 2005.
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