| #801 | ThyssenKrupp techforum, Deutsche Ausg. -- Düsseldorf : ThyssenKrupp, 2003-. -- ISSN 1612-2763 |
| #802 | ThyssenKrupp techforum. -- Düsseldorf : ThyssenKrupp, 2003-. -- ISSN 1612-2771 |
| #803 | TI : Technical information for industry. -- Jihoafrická republika : Pretoria : Technical information service of the CSIR, 1963, 1963-. -- ISSN 0040-0955 |
| #804 | TM. Technisches Messen. -- München : Oldenbourg, 1979-. -- ISSN 0171-8096 |
| #805 | TR. Technische Rundschau. Transfer. : Das Schweizer Industrie Magazin. -- Bern : Hallwag, 1993-1996. -- ISSN 0040-148X |
| #806 | Tractor review. -- Česká republika : Praha : Rapid, 1966-. -- ISSN 0323-2956 |
| #807 | Traktori i pogonske mašine : časopis Jugoslovenskog društva za pogonske mašine, traktore i održavanje. -- Novi Sad : Jugoslovensko društvo za pogonske mašine, traktore i održavanje, 1996-. -- ISSN 0354-9496 |
| #808 | Transactions of the American Society of Mechanical Engineers. -- New York : American Society of Mechanical Engineers, 1880-1958. -- ISSN 0097-6822 |
| #809 | Transactions of the Institution of Engineers and Shipbuilders in Scotland. -- Velká Británie : Glasgow : Institution of Engineers and Shipbuilders in Scotland,, 1949-. -- ISSN 0020-3289 |
| #810 | Transactions of the universities of Košice : research reports from universities of Košice. -- Košice : Technical university, 1991-. -- ISSN 1335-2334 |