Krishnamoorthy, B. (2017). Environmental Management (3.). PHI.
Chicago-čujuhus (17. p.)Krishnamoorthy, Bala. Environmental Management. 3. New Delhi: PHI, 2017.
MLA-čujuhus (9. p.)Krishnamoorthy, Bala. Environmental Management. 3. PHI, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.