TY  - BOOK
AU  - William K. Esler
TI  - Teaching Elementary Science
SN  - 0-534-03408-X
U1  - 372.35044 
PY  - 1985///
CY  - California
PB  - Wadsworth Publuishing Company 
KW  - Teaching Elementary Science
KW  - Teaching of Science
ER  -