Παραπομπή APA

(1976). The use of socio - economic indicators in developing planning. United nations educational, scientific and cultural organisation.

Παραπομπή Chicago Style

The Use of Socio - Economic Indicators in Developing Planning. Paris: United nations educational, scientific and cultural organisation, 1976.

Παραπομπή MLA

The Use of Socio - Economic Indicators in Developing Planning. United nations educational, scientific and cultural organisation, 1976.