Jan Bell. (1992). Integrated skills (upper intermediate): Workbook with answer key. London: Heineman.
Chicago-stil citatJan Bell. Integrated Skills (upper Intermediate): Workbook With Answer Key. London: Heineman, 1992.
MLA-referensJan Bell. Integrated Skills (upper Intermediate): Workbook With Answer Key. London: Heineman, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.