Cita APA

 Barton, L. (2015).  Northstar 3: Reading & writing.  Pearson Education.

Chicago Style Citation

 Barton, Laurie.  Northstar 3: Reading & Writing.  Pearson Education, 2015.

Cita MLA

 Barton, Laurie.  Northstar 3: Reading & Writing.  Pearson Education, 2015.

Atenció: Aquestes cites poden no estar 100% correctes.