APA Citatie

(2016). The vocabulary files: English usage :Advanced (CEF level C1). Tổng hợp.

Chicago Style citaat

The Vocabulary Files: English Usage :Advanced (CEF Level C1). Tổng hợp, 2016.

MLA citatie

The Vocabulary Files: English Usage :Advanced (CEF Level C1). Tổng hợp, 2016.

Let op: Deze citaties zijn niet altijd 100% accuraat.