000 00291nam a2200121Ia 4500
008 220201s1985 xx 000 0 eng d
100 _aHUGHES EDWARD
245 0 _aELECTRICAL TECHNOLOGY
250 _a2
260 _aLONDON
_bELEMENT OF RADIO SURVEYING
_c1985
300 _a710
942 _2ddc
999 _c90396
_d90396