Cita APA

Humphreys, P. (2006). IELTS Express: Upper Intermediate: Listening activities for upper intermediate workbook. London: Thomson.

Chicago Style Citation

Humphreys, Pamela. IELTS Express: Upper Intermediate: Listening Activities for Upper Intermediate Workbook. London: Thomson, 2006.

Cita MLA

Humphreys, Pamela. IELTS Express: Upper Intermediate: Listening Activities for Upper Intermediate Workbook. London: Thomson, 2006.

Atenció: Aquestes cites poden no estar 100% correctes.