Indian Institite of, E. a. e. (1994). International encyclopaedia of ecology and environment Vol 3. IIEE.
Lua i Stíl Chicago (17ú heag.)Indian Institite of, Ecology and environment. International Encyclopaedia of Ecology and Environment Vol 3. New delhi: IIEE, 1994.
Lua MLA (9ú heag.)Indian Institite of, Ecology and environment. International Encyclopaedia of Ecology and Environment Vol 3. IIEE, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.