UK Hydrographic Office
Admiralty list of radio signals : Vol.1- Part-2 - 1st Ed. - United Kingdom UK Hydrographic Office 2020 - xviii, 417p.
9780707744995
Radio in navigation
Weather broadcasting
Cipher and telegraph codes
623.8932 / UKH
Admiralty list of radio signals : Vol.1- Part-2 - 1st Ed. - United Kingdom UK Hydrographic Office 2020 - xviii, 417p.
9780707744995
Radio in navigation
Weather broadcasting
Cipher and telegraph codes
623.8932 / UKH


