TY  - GEN
AU  - Abro, A. d'.
TI  - The evolution of scientific thought from Newton to Einstein
AV  - QC 6 .A3 1950 
KW  - Science--Methodology. 50-9480
KW  - Relativity (Physics)
N1  - 2d ed., rev. and enl. 481 p. ports., diagrs. 21 cm
ER  -