000 00268nam a22000977a 4500
082 _a384.5 ALM'H
100 _aFLECT, H.M
_979956
245 _aADMIRALTY HANDBOOK OF WIRLESS VOL-II WIRLESS TELEGROPHY THEORY
260 _aLONDON
_bMAJESTY'S STATIONARY
_c1938
942 _cBK
999 _c584934
_d584934