TY  - BOOK
AU  - 
AU  - Cleugh,James
TI  - The modern theme
U1  - 196 
PY  - 1933///]
CY  - New York
PB  - W. W. Norton & Company, Inc.
KW  - Philosophy
KW  - Revolutions
KW  - Relativity (Physics)
N1  - Translation of El tema de nuestro tiempo
ER  -