Cita APA (7th ed.)

Fuchs, m., Bonner, M., & Westheimer, M. (2005). Focus on grammar 3: An integrated skills approach (Third edition.). Pearson education.

Cita Chicago (17th ed.)

Fuchs, marjorie, Margaret Bonner, i Mariam Westheimer. Focus on Grammar 3: An Integrated Skills Approach. Third edition. New York: Pearson education, 2005.

Cita MLA (9th ed.)

Fuchs, marjorie, et al. Focus on Grammar 3: An Integrated Skills Approach. Third edition. Pearson education, 2005.