TY  - BOOK
AU  - Richtmyer,F.K.
AU  - Kennard,E.H.
AU  - Cooper,John N.
TI  - Introduction to modern physics
AV  - QC 21 .R53 1969
U1  - 539 
PY  - 1969///
CY  - New York
PB  - McGraw-Hill.
KW  - Physics
N1  - Bibliographical footnotes
ER  -