TY  - BOOK
AU  - Kerr,Philip
AU  - Jones,Ceri
TI  - Straightforward: Intermediate student's book 
PY  - 2006///
CY  - Oxford
PB  - Macmillan
KW  - English language
KW  - Usage
KW  - Study and teaching
KW  - Problems, exercises, etc
ER  -