Citazione APA

Maurer, J., & Jay Maurer. (2011). Focus on grammar: An integrated skills approach. Third edition. White Plains, NY: Pearson Education.

Stile di citazione Chicago

Maurer, Jay, e Jay Maurer. Focus On Grammar: An Integrated Skills Approach. Third Edition. White Plains, NY: Pearson Education, 2011.

Citazione MLA

Maurer, Jay, e Jay Maurer. Focus On Grammar: An Integrated Skills Approach. Third Edition. White Plains, NY: Pearson Education, 2011.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.