Face to face
Avard/Dreke

The American Coloniel Experience
Goodman/Gatell

A Correspondence Workbook
Ashley, A.

English Grammar in Use
Murphy

English in Mind 1 Audio CD
Puchta, Herbert ua

Teacher's Resource Pack
Focus on modern Business 3

English Grammar Style
Utz

Dictionary of Common Errors
Heaton/Turton

Englisch Grammatik
Durchstarten

Drugs and Crime
Forster, Marcella