Cita APA (7a ed.)

Benzel, K. N., Goldbeck, J., & Benzel, M. The little english workbook.

Cita Chicago Style (17a ed.)

Benzel, Kathryn N., Janne Goldbeck, y Michael Benzel. The Little English Workbook.

Cita MLA (8a ed.)

Benzel, Kathryn N., et al. The Little English Workbook.