TY  - BOOK
AU  - J. Thewlis Harwell
AU  - Harwell, J Thewlis
AU  - J. Thewlis Harwell
TI  - Encyclopaedia Dictionary of Physics Vol No. 1
U1  - 030/HAR 
PY  - 1961///
CY  - Oxford
PB  - Persamon Press
KW  - Encyclopedic Dictionary
ER  -