Cita APA

Cullen,, P. (2008). Vocabulary for IELTS with answers. CUP.

Citación estilo Chicago

Cullen,, Pauline. Vocabulary for IELTS with Answers. CUP, 2008.

Cita MLA

Cullen,, Pauline. Vocabulary for IELTS with Answers. CUP, 2008.