TY  - BOOK
AU  -  Frazier,Catherine .
AU  -  Frazier,Richard
AU  -  Wilkin,Jennifer
AU  -  Lieske,Carmella
TI  - Time zones : : combo slipt 2B / 
SN  - 9781305260153
U1  - TI-T2B / 
PY  - 2019///
CY  - Boston
PB  -  National Geographic Learning , 
KW  - Lengua inglesa americana
KW  - enseñanza
KW  - Inglés americano
KW  - educación
N1  - Cengage learning
N2  - Unit. 7. what´s for dinner?
Unit  8. you should see a doctor!
Unit. 9. i often skate after school
Unit. 10. how do you get to the mall?
Unit. 11. what were you doing?
Unit. 12. we´re going to volunteer !
ER  -