TY  - BOOK
AU  - Chamot, Anna Uhl
AU  - Cummins, Jim
AU  - Hollie, Sharroky
TI  - Longman cornerstone A
SN  - 9780135048016
U1  - 428.24 CHA 
PY  - 2008///]
CY  - White Plains, NY
PB  - Pearson Education
KW  - English language |x Study and teaching
N1  - Includes index
ER  -