Krishnamoorthy Bala. (2017). Environmental Management (3rd ed.). PHI Learning Pvt. Ltd.
Citazione stile Chigago Style (17a edizione)Krishnamoorthy Bala. Environmental Management. 3rd ed. New Delhi: PHI Learning Pvt. Ltd, 2017.
Citatione MLA (9a ed.)Krishnamoorthy Bala. Environmental Management. 3rd ed. PHI Learning Pvt. Ltd, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.