000
00283nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Mortensen
245
0
_a
Basic readings in communication theory
260
_b
Harper and Row
260
_c
1979
365
_b
7.95
942
_c
BK
999
_c
204827
_d
204827