Krishnamoorthy Bala. (2014). Environmental Management (2nd.). Prentice Hall.
Čikaški stil citiranja (17. izdanje)Krishnamoorthy Bala. Environmental Management. 2nd. New Delhi: Prentice Hall, 2014.
MLA način citiranja (9. izdanje)Krishnamoorthy Bala. Environmental Management. 2nd. Prentice Hall, 2014.
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