TY  - BOOK
AU  - Krajcik, Joseph S.
AU  - Czerniak, Charlene.
AU  - Berger, Carl.
TI  - Teaching children science: a project-based approach 
SN  - 0070360073
U1  - 507 MCG 1999 A027 Or. 
PY  - 1999///
CY  - Boston
PB  - McGraw-Hill
KW  - Science
UR  - http://www.loc.gov/catdir/description/mh023/98039798.html
UR  - http://www.loc.gov/catdir/toc/mh022/98039798.html
ER  -