Clarke S. Simon. (2009). In Company. Pre-intermediate; CEF (Common European Framework) Level A2-B1: Student's Book (2nd ed.). Oxford, Macmillan, 2009.
Chicago-referens (17:e uppl.)Clarke S. Simon. In Company. Pre-intermediate; CEF (Common European Framework) Level A2-B1: Student's Book. 2nd ed. Oxford, Macmillan, 2009, 2009.
MLA-referens (9:e uppl.)Clarke S. Simon. In Company. Pre-intermediate; CEF (Common European Framework) Level A2-B1: Student's Book. 2nd ed. Oxford, Macmillan, 2009, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.