000
00246nam a2200109Ia 4500
100
_a
Sheingold Abraham
245
_a
Fundamentals of radio communications
250
_a
6
260
_c
1965
_b
D VAN NOSTRAND
_a
New York
300
_a
v+442
942
_c
BK
999
_c
3847
_d
3847