Krishnamoorthy Bala. (2017). Environmental Management (3rd.). PHI Learning Pvt. Ltd.
Čikaški stil citiranja (17. izdanje)Krishnamoorthy Bala. Environmental Management. 3rd. PHI Learning Pvt. Ltd, 2017.
MLA način citiranja (9. izdanje)Krishnamoorthy Bala. Environmental Management. 3rd. PHI Learning Pvt. Ltd, 2017.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.