TY  - BOOK
AU  - Frank,Christine
AU  - Berer,Marge
AU  - Rinvolucri,Mario
TI  - Challenge to think teacher's edition
SN  - 0194532518
U1  - PE/1128 
PY  - 1982///
CY  - Oxford
PB  - University Press
KW  - English language -- Textbooks for foreign speakers.
ER  -