Business Focus Pre-Intermediate Stu
Grant, David; McLarty, Robert

Source Book for Teaching English
Lewis, Michael / Hill, Jimmie

Increase your wordpower
Woxbrandt / Kunze

Business and Commerce
Wood, Neil

Englisch Offenes Lernen
Zekl, Claudia

English in Mind 1 Student's Book
Puchta, Herbert ua

English Grammar Style
Utz

Testbuch
Durchstarten Englisch

English for Customer Care
Richey,Roesmary

Muret-Sanders German-English
Langenscheidt's