000
00413nam a2200121Ia 4500
008
160316s9999 xxu||||| |||| 00| 0 eng d
100
_a
Budden, K.G
245
_a
Radio waves in the ionosphere
260
_a
Cambridge
_b
CUP
_c
1964
300
_a
VIII, 542p
650
_a
Wave propogations & transmission
999
_c
3434
_d
3434