Cita APA (7a ed.)
Cullen, P. (2007). Common mistakes at IELTS Intermediate... and how to avoid them (First published 2007.). Cambridge University Press.
Cita Chicago Style (17a ed.)
Cullen, Pauline. Common Mistakes at IELTS Intermediate... and How to Avoid Them. First published 2007. Cambridge: Cambridge University Press, 2007.
Cita MLA (9a ed.)
Cullen, Pauline. Common Mistakes at IELTS Intermediate... and How to Avoid Them. First published 2007. Cambridge University Press, 2007.
Precaución: Estas citas no son 100% exactas.