TY  - BOOK
AU  - Bickel,Charles L.
AU  - Elgenfeld,Neal D.
TI  - Physical Science Investigations
SN  - 0-395-21669-9
U1  - 500.2 
PY  - 1973///
CY  - Boston
PB  - Houghton Mifflin Co
KW  - Physical Science
KW  - Science
ER  -