| #4901 | Lighting design & application. -- Baltimore : Illuminating Engineering Society of North America, 1971-. -- ISSN 0360-6325 |
| #4902 | Lighting research and technology. -- London : Chartered Institution of Building Services Engineers, 2001-. -- ISSN 1477-1535 |
| #4903 | Lighting research & technology. -- London : Chartered Institution of Building Services Engineers, 1969-. -- ISSN 0024-3426 |
| #4904 | Lignum : odborný magazín pro dřevozpracující průmysl. -- : Nakladatelství LIGNUM, 1996-2000. -- ISSN 1211-717X |
| #4905 | Licht : Technik. Handel. Planung. Design. -- München : Pflaum Verlag, 1979-. -- ISSN 0171-5496 |
| #4906 | Linde Gas knowhow : magazine for costumers and business associates. -- Höllriegelskreuth : Linde AG |
| #4907 | L'Industrie chimique : revue mensuelle des produits chimiques et des industries annexes. -- Paris, 1952-1970. -- ISSN 0997-4377 |
| #4908 | Linux +. -- Praha : Software media, 2003-2004. -- ISSN 1214-4126 |
| #4909 | Linux+ DVD. -- Warsaw : Software-Wydawnictwo, 2004-. -- ISSN 1733-4209 |
| #4910 | Linux format : The #1 source for Linux. -- Bath : Future Publishing, 2000-. -- ISSN 1470-4234 |