| #4891 | Libri : international library review and IFLA Communications FIAB. -- München : Saur, 1950-. -- ISSN 0024-2667 print. -- ISSN 1865-8423 online |
| #4892 | Lidé a země : zeměpisný a cestopisný měsíčník. -- Praha : Mladá fronta, 1952-. -- ISSN 0024-2896 |
| #4893 | Lidová demokracie. -- Praha : Nakladatelství Lidová demokracie, 1945-1994. -- ISSN 0323-1143 |
| #4894 | Lidové noviny. -- Praha : Lidové noviny, 1988-. -- ISSN 0862-5921 |
| #4895 | Liebigs Annalen : Organic and bioorganic chemistry. -- Weinheim : VCH Verlagsgesellschaft, 1995-1998. -- ISSN 0947-3440 |
| #4896 | Liebigs Annalen der Chemie. -- Weinheim : VCH Verlagsgesellschaft, 1979-1995. -- ISSN 0170-2041 |
| #4897 | Light Metal Age. -- San Francisco : Fellom Publishing, 1943-. -- ISSN 0024-3345 |
| #4898 | Light Metals. -- London : Temple, 1938-1964. -- ISSN 0368-7759 |
| #4899 | Lighting design & application. -- Baltimore : Illuminating Engineering Society of North America, 1971-. -- ISSN 0360-6325 |
| #4900 | Lighting research and technology. -- London : Chartered Institution of Building Services Engineers, 2001-. -- ISSN 1477-1535 |