Commercial Correspondence
Ashley, A.

Business Objectives
Hollett, Vicki

Wirtschaftswörterbuch 1 E/D
Eichborn, Reinhart von

A Commercial Course
Eckersley/Kaufmann

Internet-Wörterbuch
Langenscheidt

Let`s Keep Talking
Ramsey, Gaynor

Outlines
Hopkins/Tribble

Let's get moving
Gegier, Birgit

Let's Get Talking
Ramsey

Business Builders 1, 2, 3
Emmerson, Paul