000 00301nam a2200133Ia 4500
008 191121s9999||||xx |||||||||||||| ||und||
040 _aIMU-MPC
082 _aColumn-5
100 _aIMO
245 0 _aSupplement to the international code of signals
260 _aLondon
260 _bIMO
942 _cBK
999 _c1950
_d1950