Cita APA

Boyd, E. (2009). Premium: C1 level (Exam reviser). Harlow (England): Pearson education limited.

Chicago Style Citation

Boyd, Elaine. Premium: C1 Level (Exam Reviser). Harlow (England): Pearson education limited, 2009.

Cita MLA

Boyd, Elaine. Premium: C1 Level (Exam Reviser). Harlow (England): Pearson education limited, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.