KUMAR, A. (2012). Aquatic ecosystem. Discovery Publishers.
Lua i Stíl Chicago (17ú heag.)KUMAR, Ashok. Aquatic Ecosystem. Discovery Publishers, 2012.
Lua MLA (9ú heag.)KUMAR, Ashok. Aquatic Ecosystem. Discovery Publishers, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.