TY  - BOOK
AU  - Puchta, Herbert
AU  - Gerngross, Günter
TI  - Roberto's backpack
T2  - The thinking train
SN  - 9783990453049
PY  - 2015///
PB  - Helbling Languages
N2  - When Roberto is ten years old he begins to help his dad. After school he goes to the field and takes Dad’s goats home. Roberto likes his new job, but he likes doing other things, too. Soon Roberto’s dad is unhappy with him. Then his sister Andrea has an idea
ER  -