Cita APA

Cullen, P. (2008). Cambridge Vocabulary for IELTS. New York: Cambridge University Press.

Citación estilo Chicago

Cullen, Pauline. Cambridge Vocabulary for IELTS. New York: Cambridge University Press, 2008.

Cita MLA

Cullen, Pauline. Cambridge Vocabulary for IELTS. New York: Cambridge University Press, 2008.