TY  - BOOK
AU  - Speyer, Edward
TI  - Six roads from newton: Great discoveries in physics 
T2  - Wiley popular science
SN  - 0471305030
AV  - QC21.2 S648
PY  - 1994///
CY  - New York
PB  - Wiley
KW  - Física
KW  - Historia
ER  -