APA استشهاد

Ling, O. G. (2005). Sustainability and cities: Concept and assessment. Institute of Policy Studies ; World Scientific Publishing Co. Pte. Ltd..

استشهاد بنمط شيكاغو

Ling, Ooi Giok. Sustainability and Cities: Concept and Assessment. Singapore : Singapore: Institute of Policy Studies ; World Scientific Publishing Co. Pte. Ltd., 2005.

MLA استشهاد

Ling, Ooi Giok. Sustainability and Cities: Concept and Assessment. Institute of Policy Studies ; World Scientific Publishing Co. Pte. Ltd., 2005.