Anderson, D. (1993). The Cost-effectiveness Of Gef Projects Dennis Anderson, Robert H. Williams. The Global Environment Facility.
Chicago-referens (17:e uppl.)Anderson, Dennis. The Cost-effectiveness Of Gef Projects Dennis Anderson, Robert H. Williams. The Global Environment Facility, 1993.
MLA-referens (8:e uppl.)Anderson, Dennis. The Cost-effectiveness Of Gef Projects Dennis Anderson, Robert H. Williams. The Global Environment Facility, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.