APA (7e ed.) Bronvermelding

Anderson, D., & Williams, R. H. (1993). The cost effectiveness of GEF projects. Global Environment Facility.

Chicago (17e ed.) Bronvermelding

Anderson, Dennis, en Robert H. Williams. The Cost Effectiveness of GEF Projects. Washington: Global Environment Facility, 1993.

MLA (9e ed.) Bronvermelding

Anderson, Dennis, en Robert H. Williams. The Cost Effectiveness of GEF Projects. Global Environment Facility, 1993.