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

Die Fundgrube für den Englischunter
Clarke, David

English Verbs and Tenses
Bourke, Kenna

Speaking Activities
Timesaver

in writing
Skinner,Jody Daniel

Practice in Text Analysis

Focus on Modern Business 1 Resource

Handbuch der englischen Wirtschafte
Langenscheidt

The New Cambridge English Course 1
Swan, Michael

Dictionary of New English 1963-1972
Barnhart