Singapore. Centre for Liveable Cities & Singapore. National Environmental Agency. (2013). Sustainable environment: Balancing growth with the environment. Cengage Learning Asia Pte Ltd.
Čikaški stil citiranja (17. izdanje)Singapore. Centre for Liveable Cities i Singapore. National Environmental Agency. Sustainable Environment: Balancing Growth with the Environment. Singapore: Cengage Learning Asia Pte Ltd, 2013.
MLA način citiranja (9. izdanje)Singapore. Centre for Liveable Cities i Singapore. National Environmental Agency. Sustainable Environment: Balancing Growth with the Environment. Cengage Learning Asia Pte Ltd, 2013.
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