Cypres, L. (1999). Let's speak business English: A practical guide for the speaker for a foreign language. Barron's Educational Series.
Citazione stile Chigago Style (17a edizione)Cypres, Linda. Let's Speak Business English: A Practical Guide for the Speaker for a Foreign Language. Hauppauge, NY: Barron's Educational Series, 1999.
Citatione MLA (8a ed.)Cypres, Linda. Let's Speak Business English: A Practical Guide for the Speaker for a Foreign Language. Barron's Educational Series, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.