TY  - BOOK
AU  - Wright, Kate Cory
AU  - Ito, Lesley, autor.
AU  - Shin, Joan Kang, autor.
TI  - Explore our world workbook level 4.
SN  - 9781305078345
U1  - 427.973 
PY  - 2015///
CY  - Estados Unidos
PB  - National Geographic Learning
KW  - English language -- Problems, exercises, etc.
KW  - English language -- Study and teaching -- Foreign speakers
KW  - English language -- Textbooks for foreign speakers
N1  - incluye contents; Explore our world' has more experience of the real world with content that motivates learners to us English, including surprising photgraphy, meaningful stories, readings, and video, and incredible National Geograhic Explores
ER  -