| #551 | Traffic world : {The }Transportation and Logistics Weekly. -- Washington : Traffic Service Corp., 1907-2009. -- ISSN 0041-073X |
| #552 | Trailer / body builders. -- Houston : Tunnell Publications. -- ISSN 0041-0772 |
| #553 | Trains. -- Milwaukee : Kalmbach Pub. Co., 1954-. -- ISSN 0041-0934 |
| #554 | Trains illustrated. -- Velká Británie : London : Ian Allan; 1952-1961Hampton Court : Ian Allan, 1946-1961 |
| #555 | Transactions - Institute of Marine Engineers. -- Velká Británie : London : Institute of Marine Engineers, 1889-. -- ISSN 0020-2924 |
| #556 | Transactions - Institute of Marine Engineers. Series A. -- Velká Británie : London : Institute of Marine Engineers, 1973-1976. -- ISSN 0950-530X |
| #557 | Transactions - North East Coast Institution of Engineers & Shipbuilders. -- Velká Británie : Newcastle upon Tyne : North East Coast Institution of Engineers and Shipbuilders, 1885-1992. -- ISSN 0029-280X |
| #558 | Transactions on Transport Sciences. -- Praha : Ministry of Transport, 2008-. -- ISSN 1802-971X print. -- ISSN 1802-9876 online |
| #559 | Translog. -- Washington : Military Traffic Management Command, 1987-. -- ISSN 0041-1639 |
| #560 | Transmission and Distribution. -- Spojené státy americké : Cos Cob, Connecticut : Cleworth Publ., 1971-1974 |