Não informado. (1996). Environment and Development Economics. Cambridge University Press.
Chicago-referens (17:e uppl.)Não informado. Environment and Development Economics. Cambridge, Inglaterra: Cambridge University Press, 1996.
MLA-referens (8:e uppl.)Não informado. Environment and Development Economics. Cambridge University Press, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.