TY  - BOOK
AU  - Cummings, Margaret
AU  - Thorne, Ian
TI  - High performance
SN  - 0194541851
U1  - 428.2 
PY  - 1991///
CY  - Oxford
PB  - McGraw-Hill
KW  - English language
KW  - Textbooks for foreign speakers
KW  - Study and teaching
KW  - Foreign speakers
N1  - 002474; F 066
ER  -