International_Standard_Book_Number
Wayback_Machine
Virtual_International_Authority_File
International_Standard_Name_Identifier
Système_universitaire_de_documentation
Internet_Movie_Database
MusicBrainz
PubMed
OCLC
Ensiklopedia
Bibliothèque_nationale_de_France
National_Center_for_Biotechnology_Information
JSTOR
Wikisource
Integrated_Authority_File
Liblibro_ti_Google
Internet_Archive
Library_of_Congress_Control_Number
Karbengan_ti_kopia
Nailian_a_Biblioteka_ti_Dieta
Roger_Martin_du_Gard
ArXiv
Jorge_Luis_Borges
Kontrol_ti_autoridad
WorldCat
Nailian_a_Biblioteka_ti_Espania
Gottfried_Wilhelm_Leibniz
Nailian_a_Biblioteka_ti_Australia
Nailian_a_Biblioteka_ti_Republika_a_Tseka
LIBRIS
BIBSYS
CiNii
Biblioteka_ti_Estado_ti_Rusia
Network_ti_Biblioteka_ti_Akinlaud_a_Suisa
Trove
Nailian_a_Biblioteka_ti_Suesia
Nailian_a_Biblioteka_ti_Letonia
Kaipuleohone
Paradisec
Base_Léonore
Nailian_a_Biblioteka_ti_Israel
Naarian_a_Biblioteka_ti_Olanda
Nailian_a_Biblioteka_ti_Korea