TY  - BOOK
AU  -  Cassirer Ernst, Swabey William Curtis, Swabey Marie Collins, Einstein Albert 
TI  - Substance and function and Einstein's theory of relativity
SN  - 0486495477
U1  - 530.11 
PY  - 1953///
CY  - Mineola, N.Y.
PB  - Dover Publications
KW  - Physics
N1  -  Two books bound as one
N2  -  Physics
ER  -