Krishnamoorthy Bala. (2017). Environmental Management (3rd ed.). PHI Learning Pvt. Ltd.
芝加哥风格引文Krishnamoorthy Bala. Environmental Management. 3rd ed. New Delhi: PHI Learning Pvt. Ltd, 2017.
MLA引文Krishnamoorthy Bala. Environmental Management. 3rd ed. PHI Learning Pvt. Ltd, 2017.
警告：这些引文格式不一定是100％准确.