TY  - BOOK
AU  - Siegal, Michael (Editor)
AU  - Peterson, Candida C. (Editor)
TI  - Children's understanding of biology and health 
SN  - 0-521-02179-0 (pbk)
PY  - 1999///
CY  - New York, USA
PB  - Cambridge University Press, 
KW  - Psychology
KW  - Theory of Knowledge
ER  -