000			00520nam a22001817a 4500
999			_c12017 _d12017
008			211113b ||||| |||| 00| 0 eng d
020			_a9780707744995
082			_a623.8932 _bUKH
100			_aUK Hydrographic Office
245			_aAdmiralty list of radio signals : Vol.1- Part-2
250			_a1st Ed.
260			_aUnited Kingdom _bUK Hydrographic Office _c2020
300			_axviii, 417p.
650			_aRadio in navigation
650			_aWeather broadcasting
650			_aCipher and telegraph codes
942			_cBK