Cita APA (7th ed.)

Clarke S. Simon. (2009). In Company. Pre-intermediate CEF (Common European Framework) Level A2-B1: Student's Book (2nd ed.). Oxford, Macmillan, 2009.

Cita Chicago (17th ed.)

Clarke S. Simon. In Company. Pre-intermediate CEF (Common European Framework) Level A2-B1: Student's Book. 2nd ed. Oxford, Macmillan, 2009, 2009.

Cita MLA (9th ed.)

Clarke S. Simon. In Company. Pre-intermediate CEF (Common European Framework) Level A2-B1: Student's Book. 2nd ed. Oxford, Macmillan, 2009, 2009.