Cita APA (7th ed.)

Ferree, T., & Sanabria, K. North star. Focus on listening and speaking.

Cita Chicago (17th ed.)

Ferree, Tess, i Kim Sanabria. North Star. Focus on Listening and Speaking.

Cita MLA (8th ed.)

Ferree, Tess, i Kim Sanabria. North Star. Focus on Listening and Speaking.

Atenció: Aquestes cites poden no estar 100% correctes.