TY  - BOOK
AU  - Richtmyer,F.K.
AU  - Kennard,E.H.
TI  - Introduction to modern physics,
T2  - International series in physics; L.A. DuBridge, consulting editor
AV  - QC21 .R53 1947
PY  - 1942///
CY  - New York, London
PB  - McGraw-Hill book company, inc.
KW  - Physics
N1  - Bibliographical foot-notes
ER  -