Başvuru Kaynakları
Helsinki University Library, the National Library of Finland.
25 April, 2002
555
Bibliothèque nationale de France. Collections and virtual exhibitions.
25 April, 2002
558
German National Library. National bibliographic information center for the Federal Republic of Germany, responsible...
25 April, 2002
558
National Library of Ireland. Services and collections.
25 April, 2002
512