Não informado. (2000). Impact Assessment and Project Appraisal. International Association for Impact Assessment.
Chicago-referens (17:e uppl.)Não informado. Impact Assessment and Project Appraisal. Guildford, Inglaterra: International Association for Impact Assessment, 2000.
MLA-referens (8:e uppl.)Não informado. Impact Assessment and Project Appraisal. International Association for Impact Assessment, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.