Não informado. (1967). Water Research. International Association on Water Pollution Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Water Research. New York: International Association on Water Pollution Research, 1967.
Lua MLA (8ú heag.)Não informado. Water Research. International Association on Water Pollution Research, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.