000
00264pam a2200109a 44500
082
_a
621.381
_b
B56M
100
_a
Black, Harold S.
245
1
_a
MODULATION THEORY
260
_a
New Jersey
_b
D.Van Nostrand Company, Inc.
_c
1953
964
_g
CIRC
997
_a
7663 s C
999
_c
416224
_d
416224