TY  - BOOK
AU  - George,Kenneth D.
AU  - Dietz,Maureen A.
AU  - Abraham,Eugene C.
ED  - D. C. Health 
TI  - Science investigations for elementary school teachers
SN  - 0669831549
U1  - 372.35044 23
PY  - 1974///.
CY  - Lexington: 
PB  - D. C. Heath, 
KW  - Science
KW  - Study and teaching (Elementary)
KW  - Project method in teaching
ER  -