George, C., & Kirkpatrick, C. H. (2007). Impact assessment and sustainable development: European practice and experience. Edward Elgar.
Chicago-referens (17:e uppl.)George, Clive, och C. H. Kirkpatrick. Impact Assessment and Sustainable Development: European Practice and Experience. Cheltenham, [England]: Edward Elgar, 2007.
MLA-referens (9:e uppl.)George, Clive, och C. H. Kirkpatrick. Impact Assessment and Sustainable Development: European Practice and Experience. Edward Elgar, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.