TY  - GEN
AU  - Fraser,Barry J
AU  - Tobin,Kenneth G.
TI  - International handbook of science education. P. 2 
SN  - 1-4020-1551-8
PY  - 2003///
CY  - Dordrecht
PB  - Kluwer Academic Publishers
KW  - Naturvetenskap
KW  - studier och undervisning
ER  -