| #1251 | Topics in catalysis. -- Amsterdam : Baltzer, 1994-. -- ISSN 1022-5528 print. -- ISSN 1572-9028 online |
| #1252 | 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 |
| #1253 | Transactions of the Faraday Society. -- London : Faraday Society, 1905-1971. -- ISSN 0014-7672 |
| #1254 | Transactions of the I.R.E. Professional Group on Electron Devices. -- New York : Institute of Radio Engineers, 1952-1954. -- ISSN 0197-6370 |
| #1255 | Transactions of the IRE Professional Group on Audio. -- New York : Institute of Radio Engineers, 1953-1954. -- ISSN 2168-2976 print. -- ISSN 2168-2976 online |
| #1256 | Transactions of the IRE Professional Group on Microwave Theory and Techniques. -- New York : Institute of Radio Engineers, 1953-1955. -- ISSN 0276-1173 print. -- ISSN 2331-1614 online |
| #1257 | Transactions of the IRE Professional Group on Nuclear Science. -- New York : Institute of Radio Engineers, 1954. -- ISSN 0277-6278 print. -- ISSN 2374-9822 online |
| #1258 | Transactions of the IRE Professional Group on Ultrasonics Engineering. -- New York : Institute of Radio Engineers, 1954. -- ISSN 0277-626X print. -- ISSN 2162-0679 online |
| #1259 | Transactions of the Japan Society of Mechanical Engineers. -- Tokio : Japan Society of Mechanical Engineers, 1930-1978. -- ISSN 0029-0270 |
| #1260 | Transactions of the Optical Society. -- London : Optical Society, 1899-1932. -- ISSN 1475-4878 |