TY  - BOOK
AU  - Ellis, Mark
AU  - O'Driscoll, Nina
TI  - Professional English : Teaching guide
SN  - 582748836
U1  - 428.002465 
PY  - 1984///
CY  - Harlow
PB  - McGraw-Hill
KW  - Aufgabensammlung
KW  - Business language
KW  - English
N1  - 004038; It 251
ER  -