APA (7th ed.) Citation
Smeets E & Weterings R. (1999). Environmental indicators: Typology and overview. European Environment Agency (EEA).
Chicago Style (17th ed.) Citation
Smeets E and Weterings R. Environmental Indicators: Typology and Overview. European Environment Agency (EEA), 1999.
MLA (9th ed.) Citation
Smeets E and Weterings R. Environmental Indicators: Typology and Overview. European Environment Agency (EEA), 1999.
Warning: These citations may not always be 100% accurate.