| International Code of Signals: For Visual, Sound, and Radio Communication - Nima • libris.ro | 111.32 RON |
| International Code of Signals: For Visual, Sound, and Radio Communication, Hardcover - *** • elefant.ro | 218.99 RON |
nThe International Code of Signals is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. The code covers visual, sound, and radio communications.
