Παραπομπή APA
European Environment Agency., & International Centre for Integrative Studies (ICIS). (2000). Cloudy crystal balls: An assessment of recent European and global scenario studies and models. Copenhagen: European Environment Agency.
Παραπομπή Chicago StyleEuropean Environment Agency., and International Centre for Integrative Studies (ICIS). Cloudy Crystal Balls: An Assessment of Recent European and Global Scenario Studies and Models. Copenhagen: European Environment Agency, 2000.
Παραπομπή MLAEuropean Environment Agency., and International Centre for Integrative Studies (ICIS). Cloudy Crystal Balls: An Assessment of Recent European and Global Scenario Studies and Models. Copenhagen: European Environment Agency, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.