Krishnamoorthy, B. (2017). Environmental Management (3rd.). PHI Learning Private Limited.
Chicago-referens (17:e uppl.)Krishnamoorthy, Bala. Environmental Management. 3rd. Delhi: PHI Learning Private Limited, 2017.
MLA-referens (9:e uppl.)Krishnamoorthy, Bala. Environmental Management. 3rd. PHI Learning Private Limited, 2017.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.