| #7021 | Telecommunication journal. -- Geneve : ITU, 1934-1993. -- ISSN 0497-137X |
| #7022 | Telecommunications. -- Norwood : Horizon House Publications, 1981-2001. -- ISSN 0278-4831 |
| #7023 | Telecommunications. -- Dedham : Horizon House, 1967-2001. -- ISSN 0040-2494 |
| #7024 | Telecommunications Americas. -- Norwood : Horizon House Publications, 2001-. -- ISSN 1534-956X |
| #7025 | Telecommunications international. -- Norwood : Horizon House Publications, 2001-2007. -- ISSN 1534-9594 |
| #7026 | Telecommunications policy. -- Oxford : Elsevier Science, 1976-. -- ISSN 0308-5961 print. -- ISSN 1879-3258 online |
| #7027 | Telecommunications systems : Modelling, analysis, design and management. -- Basel : J.C.Baltzer AG Science Publishers, 1992-. -- ISSN 1018-4864 print. -- ISSN 1572-9451 online |
| #7028 | Telefon : Magazín o komunikaci, mobilní elektronice a internetu. -- Praha : Techno Publishing, 2000-2002. -- ISSN 1212-9267 |
| #7029 | Telefunken-Zeitung. -- Německo : Berlin : Telefunken Gesellschaft, 1911-1967 |
| #7030 | Telegraph and telephone age : Commercial and railroad telegraphy, telephony, submarine cables, radio-telegraphy. -- Spojené státy americké : New York : Telegraph and Telephone Age, 1910-1953 |