Cita APA (7a ed.)

Doff, A., & Jones, C. (1992). Language in use: A pre-intermediate course : self-study workbook B with answer key.

Cita Chicago Style (17a ed.)

Doff, Adrian, y Christopher Jones. Language in Use: A Pre-intermediate Course : Self-study Workbook B with Answer Key. Cambridge, 1992.

Cita MLA (9a ed.)

Doff, Adrian, y Christopher Jones. Language in Use: A Pre-intermediate Course : Self-study Workbook B with Answer Key. 1992.