| #681 | Technological digest. -- Francie : Paris : Organisation for Economic Co-operation and Development, 1962- |
| #682 | Technologische Planung und Betriebsorganisation. -- Německo : Berlin : Verlag Technik,, 1953-1955 |
| #683 | Technology week. -- Spojené státy americké : Washington : American Aviation Publications, 1966-1968. -- ISSN 0096-9338 |
| #684 | The Bulletin of basic science research. -- Spojené státy americké : Cincinnati : Basic Science Research Laboratory,, 1928-1933. -- ISSN 0096-610X |
| #685 | TI : Technical information for industry. -- Jihoafrická republika : Pretoria : Technical information service of the CSIR, 1963, 1963-. -- ISSN 0040-0955 |
| #686 | Transactions of the I.R.E. Professional Group on Aeronautical and Navigational Electronics. -- New York : Institute of Radio Engineers. Professional Group on Aeronautical and Navigational Electronics, 1953-1955. -- ISSN 2168-0167 print. -- ISSN 2168-0175 online |
| #687 | Transactions of the I.R.E. Professional Group on Airborne Electronics. -- New York : Institute of Radio Engineers, 1951-1953. -- ISSN 2168-0213 print. -- ISSN 2168-0221 online |
| #688 | Transactions of the I.R.E. Professional Group on Antennas and Propagation. -- New York : Institute of Radio Engineers, 1952-1955. -- ISSN 2168-0639 print. -- ISSN 2168-0647 online |
| #689 | Transactions of the I.R.E. Professional Group on Electron Devices. -- New York : Institute of Radio Engineers, 1952-1954. -- ISSN 0197-6370 |
| #690 | Transactions of the IRE Professional Group on Audio. -- New York : Institute of Radio Engineers, 1953-1954. -- ISSN 2168-2976 print. -- ISSN 2168-2976 online |