LEADER 00000nam 2200181 a 4500 001 0623568 003 UkHlHU 007 t 008 002704 2 1950 000 eng 040 UkHlHU 050 4 HE 8698 S5 100 1 Siepmann, Charles Arthur,|d1899- 245 10 Radio, television and society. 260 New York :|bOxford University Press,|c1950. 300 410p. 650 0 Radio broadcasting|zUnited States. 650 0 Television broadcasting.
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