TY  - BOOK
AU  - Worsnop, B. L.  
AU  - Flint, H. T. 
TI  - Advanced practical physics for students
PY  - 1923///
CY  - London
PB  - Methuen 
KW  - Errors Of ObservationMeasurements Of LengthRadio-frequancy MeasurementsTerrestrial Magnetism
ER  -