Cita APA

Fuchs, M., Bonner, M., Maurer, J., & Westheimer, M. (2012). Focus on grammar (4. ed.). [New York]: Pearson.

Citación estilo Chicago

Fuchs, Marjorie, Margaret Bonner, Jay Maurer, y Miriam Westheimer. Focus On Grammar. 4. ed. [New York]: Pearson, 2012.

Cita MLA

Fuchs, Marjorie, Margaret Bonner, Jay Maurer, y Miriam Westheimer. Focus On Grammar. 4. ed. [New York]: Pearson, 2012.