| #1271 | The journal of optical networking. -- Washington, D.C. : Optical Society of America, 2002-2009. -- ISSN 1536-5379 |
| #1272 | Theoretical and applied fracture mechanics. -- Amsterdam : North-Holland, 1984-. -- ISSN 0167-8442 print. -- ISSN 1872-7638 online |
| #1273 | Theoretical and applied mechanics letters. -- New York : American Institute of Physics, 2011-. -- ISSN 2095-0349 |
| #1274 | Theoretical and computational fluid dynamics. -- Berlin : Springer-Verlag, 1989-. -- ISSN 0935-4964 print. -- ISSN 1432-2250 online |
| #1275 | Theoretical and mathematical physics. -- New York : Consultants Bureau, 1969-. -- ISSN 0040-5779 print. -- ISSN 1573-9333 online |
| #1276 | Thin solid films. -- Lausanne : Elsevier Sequoia, 1967-. -- ISSN 0040-6090 print. -- ISSN 1879-2731 online |
| #1277 | Time and motion study. -- Velká Británie : London : Sawell Publ.,, 1952-1964 |
| #1278 | Topics in catalysis. -- Amsterdam : Baltzer, 1994-. -- ISSN 1022-5528 print. -- ISSN 1572-9028 online |
| #1279 | Transaction of the IRE. Professional Group on Audio. -- Spojené státy americké : New York : Institute of Radio Engineers for the Professional Group on Audio, 1952-1955 |
| #1280 | Transactions of the Faraday Society. -- London : Faraday Society, 1905-1971. -- ISSN 0014-7672 |