TY  - BOOK
AU  - George,Kenneth D.
TI  - Elementary school science: why and how 
AV  - LB1585.G348.E446 1974 
PY  - 1974///
CY  - Lexington, Massachusetts
PB  - D. C. Heath
KW  - Science
KW  - Study and teaching (Elementary)
N1  - 1; 2
ER  -