L

LA Referencia

Laleydigital

Laminación

Latindex

Layar

LIBER : Ligue des Bibliothèques Européennes de Recherche – Association of European Research Libraries

LibQUAL+

Library Hub Discover

LibraryH3lp

LibraryThing

LILACS

LION : Literature Online

LISA : Library and Information Science Abstracts

LISTA : Library, Information Science & Technology Abstracts

Literatura gris

LLBA : Linguistics and Language Behavior Abstracts

LOCKSS : Lots Of Copies Keep Stuff Safe