National Library of the Philippines. Impact stories: A publication for library and information services month (Librarian edition.).
Chicago-referens (17:e uppl.)National Library of the Philippines. Impact Stories: A Publication for Library and Information Services Month. Librarian edition.
MLA-referens (9:e uppl.)National Library of the Philippines. Impact Stories: A Publication for Library and Information Services Month. Librarian edition.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.