Cita APA (7a ed.)

Bater, B., & Lees, G. (1992). Written english for business: Third level. Oxford University.

Cita Chicago Style (17a ed.)

Bater, Bernard, y Gerald Lees. Written English for Business: Third Level. Oxford: Oxford University, 1992.

Cita MLA (9a ed.)

Bater, Bernard, y Gerald Lees. Written English for Business: Third Level. Oxford University, 1992.