Cypres, L. (1999). Let's speak business English: A practical guide for the speaker for a foreign language. Barron's Educational Series.
Chicago-referens (17:e uppl.)Cypres, Linda. Let's Speak Business English: A Practical Guide for the Speaker for a Foreign Language. Hauppauge, NY: Barron's Educational Series, 1999.
MLA-referens (8:e uppl.)Cypres, Linda. Let's Speak Business English: A Practical Guide for the Speaker for a Foreign Language. Barron's Educational Series, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.