TY  - BOOK
AU  - Tracy, G. R.
AU  - Tropp, H . E .
AU  - Friedl, E. A.
TI  - Modern physical science
SN  - 0030415101
AV  - DUCE Q161.2.T72 
PY  - 1974///
CY  - New York
PB  - Rinehart and Winston
KW  - Science
KW  - physical science
N1  - Includes Appendix,bibliographical index and glossary
ER  -