Cita APA

Fuchs, M. 1., Bonner, M., & Curtis, J. (2012). Focus on grammar 4: [an integrated skills approach] (4. edition.). White Plains, N.Y.: Pearson.

Citación estilo Chicago

Fuchs, Marjorie 1949-, Margaret Bonner, y Jane Curtis. Focus On Grammar 4: [an Integrated Skills Approach]. 4. edition. White Plains, N.Y.: Pearson, 2012.

Cita MLA

Fuchs, Marjorie 1949-, Margaret Bonner, y Jane Curtis. Focus On Grammar 4: [an Integrated Skills Approach]. 4. edition. White Plains, N.Y.: Pearson, 2012.