Cita APA

Leather, S., & Thomlinson, J. (2011). Running free. Boston: Heinle.

Chicago Style Citation

Leather, Sue., i Julian Thomlinson. Running Free. Boston: Heinle, 2011.

Cita MLA

Leather, Sue., i Julian Thomlinson. Running Free. Boston: Heinle, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.