TY  - BOOK
AU  - Boyd,Elaine
AU  - Stephens,Mary
TI  - Activate! B2 + students book
SN  - 9781408253892
PY  - 2010///
CY  - Essex : 
PB  - Pearson Education, 
KW  - INGLES-ENSEÑANZA
KW  - SALA JUVENIL
ER  -