APA引文
(2013). Quality of life in cities. European Union. https://doi.org/10.2776/79403
Chicago Style (17th ed.) Citation
Quality of Life in Cities. Bruselas: European Union, 2013. https://doi.org/10.2776/79403.
MLA引文
Quality of Life in Cities. European Union, 2013. https://doi.org/10.2776/79403.
警告：這些引文格式不一定是100％准確.