TY  - BOOK
AU  - Allen,Donald S.
AU  - Ordway RIchard J.
TI  - Physical science
AV  - Q161 Al531 1968
PY  - 1968///]
CY  - Canada
PB  - AMERICAN BOOK COMPANY
KW  - Physical sciences
N1  - Includes bibliography, appendix and index
ER  -