| #451 | Exchange & outlook administrator. -- Loveland : Penton Technology Media, 2001-. -- ISSN 1536-2965 |
| #452 | Experimental wireless. -- Velká Británie : London : s.n., 1923-1924, 1923- |
| #453 | Expert systems. -- Oxford : Learned Information, 1984-. -- ISSN 0266-4720 print. -- ISSN 1468-0394 online |
| #454 | Expert systems for information management. -- Velká Británie : Taylor Graham Publishing, 1991-1992. -- ISSN 0953-5551 |
| #455 | Expert systems with applications. -- Oxford : Pergamon, 1990-. -- ISSN 0957-4174 |
| #456 | Exploring Oracle. -- Rochester : Eli Journals, 1996-. -- ISSN 1098-4755 |
| #457 | Exploring Windows NT : tips & techniques for users of Microsoft Windows NT. -- Louisville : Cobb Group, 1993-2001. -- ISSN 1070-8383 |
| #458 | Exploring Windows NT for professionals. -- Rochester : Element K Journals, 2001-2005. -- ISSN 1532-446X print. -- ISSN 1539-0454 online |
| #459 | Extra PC : moderní technologie pro lidi. -- Brno : Extra Publishing, 2006-. -- ISSN 1802-1220 |
| #460 | Federal computer week. -- Boston : CW Communications, 1987-. -- ISSN 0893-052X |