Cita APA (7a ed.)
Jakeman, V., & Mcdowell, C. (2004). Step up to ielts: Personal study book with answers. CUP.
Cita Chicago Style (17a ed.)
Jakeman, Vanessa, y Clare Mcdowell. Step Up to Ielts: Personal Study Book with Answers. Cambridge: CUP, 2004.
Cita MLA (9a ed.)
Jakeman, Vanessa, y Clare Mcdowell. Step Up to Ielts: Personal Study Book with Answers. CUP, 2004.
Precaución: Estas citas no son 100% exactas.