TY  - BOOK
AU  - George,Kenneth D
AU  - Dietz,Maureen A.
AU  - Abraham,Eugene C.
TI  - Science investigations for elementary school teachers
SN  - 0669831549
U1  - 372.35044 
PY  - 1974///
CY  - Lexington, Mass.
PB  - D. C. Heath
KW  - Science
KW  - Project method in teaching
ER  -