Citazione Stile APA (7a Edizione)

UNESCO. (1978). Indicators of environmental quality and quality of life. Unesco.

Citazione stile Chigago Style (17a edizione)

UNESCO. Indicators of Environmental Quality and Quality of Life. Paris: Unesco, 1978.

Citatione MLA (9a ed.)

UNESCO. Indicators of Environmental Quality and Quality of Life. Unesco, 1978.