Cita APA

Maurer, J., & Maurer, J. (2012). Focus on grammar 5: [an integrated skills approach] (4. edition.). White Plains, N.Y.: Pearson.

Citación estilo Chicago

Maurer, Jay, y Jay Maurer. Focus On Grammar 5: [an Integrated Skills Approach]. 4. edition. White Plains, N.Y.: Pearson, 2012.

Cita MLA

Maurer, Jay, y Jay Maurer. Focus On Grammar 5: [an Integrated Skills Approach]. 4. edition. White Plains, N.Y.: Pearson, 2012.