(1997). Guidelines for legislation for national library services. General Information Programme and Unisist, United Nations Educations, Scientific and Cultural Organization.
Cita Chicago (17th ed.)Guidelines for Legislation for National Library Services. Paris: General Information Programme and Unisist, United Nations Educations, Scientific and Cultural Organization, 1997.
Cita MLA (9th ed.)Guidelines for Legislation for National Library Services. General Information Programme and Unisist, United Nations Educations, Scientific and Cultural Organization, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.