Travel
Rabley, Stephen

Education in Britain and America
Stenzel, Elke u.a.

Smile IV
Lichtenwagner, Claudia

Business and Commerce
Wood, Neil

Wirtschaftswörterbuch 1 E/D
Eichborn, Reinhart von

Play the Role
Harris, Peter

Englisch Pocket Reader
Clarke, David

Testing Material
Focus on Modern Business 2

English Preposition Idioms
Wood

Increase your wordpower key
Woxbrandt / Kunze