Global Leaders for Tomorrow Environment Task Force, Yale Center for Environmental Law and Policy, Center for International Earth Science Information Network, Esty, D. C., & Cornelius, P. (2002). Environmental performance measurement: The global report 2001-2002. Oxford University Press.
Chicago-referens (17:e uppl.)Global Leaders for Tomorrow Environment Task Force, Yale Center for Environmental Law and Policy, Center for International Earth Science Information Network, Daniel C. Esty, och Peter Cornelius. Environmental Performance Measurement: The Global Report 2001-2002. Oxford ; New York: Oxford University Press, 2002.
MLA-referens (8:e uppl.)Global Leaders for Tomorrow Environment Task Force, et al. Environmental Performance Measurement: The Global Report 2001-2002. Oxford University Press, 2002.