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

- 16 A.P.P.P. APR APRA APRO APRTA APS APS A APTU APU A.P.V. AQ/U/ AR ARA A.R.B. ARBBA ARBD ARC ARČ ARCAN ARCHI Agence de Publicité de la Presse de Province, P /f

/ Atlantic and Pacific Railroad Company, /US/ /е/ 1. Aircraft Production Resources Agency,/US/ /е/ 2. Automotive Parts Rebuilders Association/US/ /е/ Aerial Phenomena Research Organization, /US/ /е/ The Associated Press Radio and Television Association, NY /е/ Associazione Pubblicitá Stampa, Mi /i/ Ae'rolineas Peruanas Sociedad Anónima /es/ African Postal and Telecommunications Union /е/ Arab Postal Union /е/ Agence de Press Voltai'que, Ouagadougou /f

/ Aquila Airways Limited, /GB/ /е/ 1. Aérolineas Argentinas /es/ 2. Aeronautical Radio /Incorporated/, /US/ /е/ 3. Agence Reuter /f/ Agencja Robotnicza /ро/ 5. Die Auslands-Reaktion, /BRD/ /d/ 1. Aerial Ropeways Association, L /е/ 2. Aircraft Research Association, /GB/ /е/ 3. American Radio Association /е/ A* American Railway Association /е/ 1. Arbeiders Reisbureau /пе/ 2. Air Research Bureau /е/ American Railway Bridge and Building Association, Ch /е/ Allgemeiner Radio-Bund Deutschlands /d/ 1. Aero Research Committee /е/ 2. Aircraft Radio Corporation, /US/ /е/ 3. Amateur Radio Club /d/ A. Ames Research Center of the National Aeronautics and Space Administration /е/ 5. American Radio Corporation /е/ 6. Automobile Racing Club, /GB/ /е/ = AKRČS Aeronautical Radio of Canada /е/ Asociación de Radiodifusoras de Chile, S /es/