TY  - BOOK
AU  -  Butts,David P.
TI  -  Teaching science in the elementary school / 
U1  -  372.35 BUT 
PY  - 1973///
CY  -  New York : 
PB  -  Free Press, 
KW  -  Science
KW  -  Study and teaching (Elementary)
N1  -  Includes bibliographies
ER  -