Cita APA

Preiss, S. (2009). Northstar 5: Listening and speaking. (3. ed.). New YorK: Pearson education.

Citación estilo Chicago

Preiss, Sherry. Northstar 5: Listening and Speaking. 3. ed. New YorK: Pearson education, 2009.

Cita MLA

Preiss, Sherry. Northstar 5: Listening and Speaking. 3. ed. New YorK: Pearson education, 2009.