TY  - GEN
AU  - Herrera,Mario
AU  - Pinkley, Diane.
TI  - Backpack 1: teacher's book 
SN  - 1405800224
AV  - JUV 00848 
PY  - 2005///
CY  - White Plains, N.Y.
PB  - Longman
KW  - Children's literature
KW  - Study and teaching
ER  -