Barton, D., Burkart, J., & Sever, C. (2010). The business English teacher: Professional principles and practical procedures. Delta Publishing.
Chicago-Zitierstil (17. Ausg.)Barton, Debbie, Jennifer Burkart, und Caireen Sever. The Business English Teacher: Professional Principles and Practical Procedures. Peaslake, Surrey: Delta Publishing, 2010.
MLA-Zitierstil (9. Ausg.)Barton, Debbie, et al. The Business English Teacher: Professional Principles and Practical Procedures. Delta Publishing, 2010.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.