TY  - BOOK
AU  - Esler,William K.
AU  - Esler,Mary K.
TI  - Teaching elementary science
SN  - 0534095283
AV  - LB1585 .E84 1989
U1  - 372.35044 ESL 22nd ed.
PY  - 1989///
CY  - Belmont, Calif.
PB  - Wadsworth Publishing
KW  - Science
KW  - Study and teaching (Elementary)
N1  - Includes bibliographies and index
ER  -