TY  - BOOK
T1  - Traveling-Wave Tubes
A1  - Pierce, John Robinson 1910
PP  - New York
PB  - D. Van Nostrand Co.
YR  - 1951
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.160866
OP  - 257
ER  -