TY  - BOOK
AU  - Hurd,Paul DeHart
AU  - Gallagher,James Joseph
TI  - New directions in elementary science teaching
T2  - Wadsworth guides to science teaching
AV  - LB1585 .H8
U1  - 372.3/5 
PY  - 1968///]
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Science
KW  - Study and teaching (Elementary)
KW  - Local
N1  - Bibliography: p. 135-145
ER  -