APA način citiranja (7. izdanje)
Ooi, G. L. (2005). Sustainability and cities: Concept and assessment. World Scientific Pub..
Čikaški stil citiranja (17. izdanje)
Ooi, Giok Ling. Sustainability and Cities: Concept and Assessment. New Jersey: World Scientific Pub., 2005.
MLA način citiranja (9. izdanje)
Ooi, Giok Ling. Sustainability and Cities: Concept and Assessment. World Scientific Pub., 2005.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.