TY  - BOOK
AU  - Langley,Rita
TI  - Teaching elementary science: the teacher's guide to effective classroom activities 
U1  - 372.3 
PY  - 1968///
CY  - West Nyack, N.Y.
PB  - Parker Pub. Co.
KW  - Science
KW  - Study and teaching (Elementary)
N1  - Includes bibliographies
ER  -