TY  - BOOK
AU  - Steinmetz,Charles Proteus
TI  - Four lectures on relativity and space
AV  - QC6 .S8
PY  - 1923///
CY  - New York [etc.]
PB  - McGraw-Hill Book Company, inc.
KW  - Relativity Physics
KW  - Local
KW  - Space and time
N1  - Plates in pocket
ER  -