TY  - BOOK
AU  - GEWARTOWSKI, J. W
TI  - PRINCIPLES OF ELECTRON TUBES INCLUDING GRID CONTROLLED TUBES MICROWAVE TUBES AND GAS TUBES
U1  - 621.381542 GEW'P 
PY  - 1965///
CY  - NEWJERSCY
PB  - D. VAN NOSTRAND
ER  -