Moravek Endre: Index acronymorum selectorum. Pars 1. Instituta rerum publicarum (A MTAK kiadványai 46. Budapest, 1965)

APA APACL AP and SC APART A PB APC AP CA APCCLA APCD AP CS APD APF APFC APFOND API APIC APIS APK APLA АРМ APMC A.P.N. А.Р.О. - 24- 8. Atlantic Pact /е/ 9. Autonomna Pokrajina /h/ 1. All Peoples' Association /е/ 2. Auxiliary Police Association /е/ Asian Peoples' Anti-Communist League, Saigon /е/ Army Port and Service Command, /US/ /е/ Alliance of Pan American Round Tables /e/ 1. Air Priority Board, /US/ /е/ 2. Aircraft Production Board /е/ 1. All People's Congress, /Sierra Leone/ /е/ 2. Allied Purchasing Commission /е/ 3. Approach Control /е/ 4. Army Pay Corps, /GB/ /е/ 1. American Planning and Civic Association, W /е/ 2. Assistenza Pubblica Commerciale Amministrativa

, Mi /\/ Aviation Petroleum Coordinating Committee, Latin America /е/ Air Pollution Control Department /е/ Air Photographic and Charting Service /US AF/ /е/ 1. Air Personnel Department, /GB/ /е/ 2. Army Pay Department /е/ 1. Anarkistiska Propagandaf

örbundet /s/ 2. Anglican Pacifist Fellowship /е/ 3. Australian Permanent Forces /е/ 1. American Plant Food Council /е/ 2. Asian-Pacific Forestry Commission /е/ Administratiekantoor voor Publieke Fondsen eh andere Waarden /пе/ Associazione Progressista Internazionale

, R /i/ Army Photographic Interpretation Center, /US/ /е/ Army Photographic Interpretation Section /е/ Állami Pincegazdaságok Központja, Bp /т/ Armenian Progressive League of America, NY /е/ Army Provost Marshal, /GB/ /е/ Allied Political and Military Commission /е/ Atlantic Pact Nations /е/ 1. African People's Organization, /S.Afr./ /е/