TY  - BOOK
ED  - Houghton Mifflin Company
TI  - Social Studies : My world : Teacher´s edition 
SN  - 9780618830985
U1  - TEP 300 H78W T  
PY  - 2008///
CY  - Boston 
PB  - Houghton Mifflin 
KW  - Social sciences
KW  - Social sciences -- School texts
N1  - Contenido : Families and friends -- A big wide world -- Long ago and today -- Our country, it´s a great place
ER  -