000 00396nam a22001457a 4500
082 _a621.382
_bKee
_cL-11, P-53
100 _aKeen, R.
_941823
245 _aWireless direction finding
_cKeen, R.
250 _a4th
260 _aLondon
_bIlifee & Sons, Ltd
_c1922
300 _axii, 1059 p. :
_bill, ;
_c20 cm.
526 _a0
_b0
_c0
_d621_382000000000000_KEE
650 _aMCE (D)
942 _2ddc
_cBK
999 _c545850
_d545850