TY  - BOOK
AU  - Stephenson,Helen
AU  - Dummett,Paul
AU  - Hughes,John
TI  - Life
SN  - 9781305255722
AV  - PE1128 S74 2015
PY  - 2015///
CY  - Boston : 
PB  - National Geographic Learning/Cengage Learning
KW  - lemb
KW  - Método de enseñanza
KW  - Libros de texto
N1  - Contenido; v.1 Student book 1 -- v.2 Student book 2 -- v.3 Student book 3 -- v.4 Student book 4 -- v.5 Student book 5 -- v.6 Student book 6  v. 7 Workbook 1 -- Teacher's guide 2
ER  -