Cita APA

Collins Cobuild. (2012). Collins Cobuild Key Words for IELTS. TP. HCM: Tổng hợp.

Citación estilo Chicago

Collins Cobuild. Collins Cobuild Key Words for IELTS. TP. HCM: Tổng hợp, 2012.

Cita MLA

Collins Cobuild. Collins Cobuild Key Words for IELTS. TP. HCM: Tổng hợp, 2012.