TY  - BOOK
AU  - HENSON, Kenneth T.
AU  - JANKE, Delmar
TI  - Elementary science methods
SN  - 007028265X
PY  - 1984///
CY  - New York
PB  - McGraw-Hill
KW  - Science
KW  - Study and teaching (elementary)
N1  - Includes index
ER  -