TY  - BOOK
AU  - Sturm, Hertha.
TI  - Information processing by young children: Piaget's theory of intellectual development applied to radio and television
SN  - 978 3 598 20204 9
U1  - 155 41302852 STU 
PY  - 1981///
CY  - Munchen
PB  -  K. G. Saur
ER  -