TY  - BOOK
AU  - Budden,K.G., x
AU  - x
TI  - The wave-guide mode theory of wave propagaton: x
SN  - x
U1  - 621.38411/BUW 
PY  - 1961///
CY  - Lond
PB  - Logos Press
KW  - Radio
KW  - Waves
N1  - x
ER  -