Keren, C. (1982). A national library information service system in Barbados. International Development research Centre.
Chicago-referens (17:e uppl.)Keren, Carl. A National Library Information Service System in Barbados. Canada: International Development research Centre, 1982.
MLA-referens (9:e uppl.)Keren, Carl. A National Library Information Service System in Barbados. International Development research Centre, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.