000
002380000a22001090004500
245
_a
The ARRL operating manual
100
_a
Halprin, P.
260
_a
Newiongton
_b
ARRL
_c
1980
080
_a
621.396
_b
H3
041
_a
EN
942
_c
BK
999
_c
112630
_d
112630