UNESCO. Socio - economic indicators planning: Methodological aspects and selected examples. UNESCO.
Cita Chicago (17th ed.)UNESCO. Socio - Economic Indicators Planning: Methodological Aspects and Selected Examples. París: UNESCO.
Cita MLA (9th ed.)UNESCO. Socio - Economic Indicators Planning: Methodological Aspects and Selected Examples. UNESCO.
Atenció: Aquestes cites poden no estar 100% correctes.