| #8011 | WT. Produktion und Management. -- Berlin : Springer, 1992-1996. -- ISSN 0941-2360 |
| #8012 | WT. Wärmetechnik, Versorgungstechnik : Zeitschrift für den Fachplaner in der technischen Gebäudeausrüstung. -- Stuttgart : Gentner, 1998-2001. -- ISSN 1436-5197 |
| #8013 | WT. Werkstattstechnik. -- Berlin : Springer, 1959-1991. -- ISSN 0340-4544 |
| #8014 | X journal : delivering open computing technology with the x window system. -- New York : Coot, 1991-. -- ISSN 1056-7003 |
| #8015 | X-Ray Spectrometry. -- London : Heyden, 1972-. -- ISSN 0049-8246 print. -- ISSN 1097-4539 online |
| #8016 | X-ray technician. -- Spojené státy americké : Saint Paul : American Society of X-ray Technicians, 1929-1963 |
| #8017 | Xerox disclosure journal. -- Stamford : Xerox, 1976-. -- ISSN 0361-4190 |
| #8018 | Yearbook and List of Members - Institution of Engineers and Shipbuilders in Scotland. -- Velká Británie : London : Institution of Engineers and Shipbuilders in Scotland, 1900-1990 |
| #8019 | Yearbook and List of Members - Institution of Water Engineers. -- Velká Británie : London : Institution of Water Engineers, 1947-1955 |
| #8020 | Yearbook and list of members of the Institution of structural engineers. -- Velká Británie : London : Institution of Structural Engineers, 1950-1966 |