000 00847cam a2200253 a 4500
001 1505271
003 BD-DhUL
005 20170420182503.0
008 870323s1987 mdua b 001 0 eng
020 _a0801833876
_qalkaline paper
035 _a1505271
040 _aLC
_beng
_cBD-DhUL
_dLC
_dBD-DhUL
082 _a384.5409
_bDOU
100 1 _aDouglas, Susan J.
_q(Susan Jeanne),
_d1950-
245 1 0 _aInventing American broadcasting, 1899-1922 /
_cSusan J. Douglas.
260 _aBaltimore :
_bJohns Hopkins University Press,
_c1987.
300 _axxix, 363 p. :
_bill. ;
_c25 cm.
440 0 _aJohns Hopkins studies in the history of technology
500 _aIncludes index.
504 _aBibliography: p. 323-354.
650 0 _aRadio broadcasting
_zUnited States
_xHistory.
650 0 _aRadio
_zUnited States
_xHistory.
942 _2ddc
_cBK
999 _c190447
_d190447