Citazione Stile APA (7a Edizione)

(1981). An Environmental bibliography: Publications issued by unep or under its auspices 1973-1980. United Nations Environment Programme.

Citazione stile Chigago Style (17a edizione)

An Environmental Bibliography: Publications Issued by Unep or Under Its Auspices 1973-1980. Nairobi: United Nations Environment Programme, 1981.

Citatione MLA (9a ed.)

An Environmental Bibliography: Publications Issued by Unep or Under Its Auspices 1973-1980. United Nations Environment Programme, 1981.