Keren, C. (1982). A national library information service system in Barbados. International Development research Centre.
Citazione stile Chigago Style (17a edizione)Keren, Carl. A National Library Information Service System in Barbados. Canada: International Development research Centre, 1982.
Citatione MLA (9a ed.)Keren, Carl. A National Library Information Service System in Barbados. International Development research Centre, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.