Lua APA (7ú heag.)

Kaushik,A. (2012). Perspective in Environmental Studies,3rd ed (3rd.). New Age.

Lua i Stíl Chicago (17ú heag.)

Kaushik,A. Perspective in Environmental Studies,3rd Ed. 3rd. New Delhi: New Age, 2012.

Lua MLA (9ú heag.)

Kaushik,A. Perspective in Environmental Studies,3rd Ed. 3rd. New Age, 2012.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.