Não informado. (1973). Journal of Environmental Management. Academic Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Environmental Management. London: Academic Press, 1973.
Lua MLA (8ú heag.)Não informado. Journal of Environmental Management. Academic Press, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.