TY  - BOOK
AU  - Blough,O.Glenn
AU  - Schwarts,Julius
TI  - Elementary school science and how to teach it
SN  - 030698901 :
U1  - 372.3 
PY  - 1951///
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Science
KW  - Study and teaching (Elementary)
N1  - Includes index
ER  -