Valsts valodas centra izstrādātie transporta, infrastruktūras un sakaru termini

Konteksts: [..] The calculation of air conveyance dues on closed dispatches, priority items, airmail items and air parcels sent in transit à découvert, as well as the relevant methods of accounting, are described in the Letter Post and Parcel Post Regulations. [..]
Avots: Universal Postal Convention + The Final Protocol