Não informado. (1972). Ambio: A journal of the human environment, research and management. Royal Swedish Academy of Sciences.
Chicago-referens (17:e uppl.)Não informado. Ambio: A Journal of the Human Environment, Research and Management. Stockholm: Royal Swedish Academy of Sciences, 1972.
MLA-referens (8:e uppl.)Não informado. Ambio: A Journal of the Human Environment, Research and Management. Royal Swedish Academy of Sciences, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.