000 00292nam a22000977a 4500
999 _c17014
_d17014
245 _aRadio & electronics engineer/
_cUS department of heath, education and welfare.
250 _avol-44
260 _aLondon:
_bInstitution of electronics & radio engineer,
_c1974.
300 _a698 p.
942 _cWOB