Moravek Endre: Index acronymorum selectorum. Pars 7. Instituta communicationis (A MTAK kiadványai 47. Budapest, 1966)

- 135 RIRB Railway Insurance Rating Bureau, /US/ /е/ RISA Railway and Industrial Spring Association, /US/ /е/ RISRI Railway and Industrial Spring Research Institute, /US/ /е/ RISRR Rock Island Southern Railroad, /US/ /е/ RIT Réseau Interaméricain de Télécommunication /f/ Ritz-Bur. = RB^ RIV Regolamento Internazional

e Veicoli, Berne /i/ RIW Réglement International pour l'Emploi Réciproque des Wagons en Trafic Internationale /f

/ = RIV RJCT Radio Jugoslovanske Cone Trsta /si/ RK Radio Klub /h/ Rkb Reichskursbuch /d/ R.K.G. Rockingham Railroad Company, /US/ /е/ R.K.O. Radio-Keith-Orpheum /s/ R.K.R. Rohilkund and Kumaon Railway, /India/ /е/ RKlí Radiokomunikační Kontrolní lírad /с/ R.L. Radio-Luxembourg /f/ R.L.A.F. Réseau des Lignes Aériennes Françaises /f

/ RLEA Railway Labor Executives Association, /US/ /е/ RLHS Railway and Locomotive Historical Society, /US/ /е/ RLj Radio Ljubljana /si/ R.L.O. Returned Letter Office /е/ RLPL Railway Labor's Political League, /US/ /е/ R

LSF Riksluftskyddsf

örbundet /s/ Rl/w/y railway /е/ Rly Con.Com.

В. Railway Control Communication Board, /GB/ /е/ R.

M. 1. Rete Mediterranea /i/ 2. Royal Mail, /GB/ /е/ RMA Railway Mail Association, /US/ /е/ RMC 1. Radio Modifications Committee, /GB/ /е/ 2. Radio Monte-Carlo /f/ RMCB Registered Mail Central Bureau, NY /е/ RMD Österreichischer Kanal- und Schiffahrtsverein Rhein-Main-Donau /d/ RMS 1. Railway Mail Service, /US/ /е/ 2. Royal Mail Service, /GB/ /е/