| Interian de Ayala, Juan |
| Interiano, Paolo |
| Interiano, Paolo |
| Interguglielmi, Nunzio |
| Interiano, Giorgio |
| Interiano, Paolo |
| Interlandi, Emilio |
| Interlandi, Telesio |
| Interlandi, Vincenzo |
| Interian de Ayala, Juan |
| Interlandi, Telesio |
| Interligi, Gesualdo |
| Intermezzi in derisione della setta Maomettana, coll'espressione d'alcuni riti de' Turchi nel porgere preghiere al falso profeta. |
| Intermezzi per Musica da cantarsi nella tragedia, intitolata "Il Matatia". |
| International Encyclopedia of the Social Sciences. |
| International agricultural study centre. |
| International Air transport Association. |
| International Amateur Theatre Association (A. I. T. A.) |
| International Association for Bridge and Structural Engineering |
| International Association for classical Archaeology |
| International Association of logopedies and phoniatrics. Padua 1962 |
| International Association of vohanology |
| International Astronautical Federation |
| International Atomic Energy Agency. Vienna |
| International Atomic Energy Agency. Vienna |
