TY  - BOOK
AU  - Harlen,Wynne
AU  - Elstgeest,Jos
TI  - Unesco sourcebook for science in the primary school: a workshop approach to teacher education
SN  - 9231027212
PY  - 1992///
CY  - Paris
PB  - Unesco
KW  - Science
KW  - Study and teaching
ER  -