TY  - BOOK
AU  - Blough,Glenn O.
TI  - Elementary school science : And how to teach  it
SN  - 00309155392
U1  - 372.35 5th ed.
PY  - 1974///
CY  - New York
PB  - Holt,Rinehart and Winston
KW  - Education-Elementary-Science-Teaching
N1  - 1.	Teaching elementary science
2.	The earth and the universe
3.	Living things
4.	Metter and energy

ER  -