Lua APA (7ú heag.)

Krishnamoorthy Bala. (2017). Environmental Management (3rd.). PHI.

Lua i Stíl Chicago (17ú heag.)

Krishnamoorthy Bala. Environmental Management. 3rd. Delhi: PHI, 2017.

Lua MLA (9ú heag.)

Krishnamoorthy Bala. Environmental Management. 3rd. PHI, 2017.

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