Não informado. (1978). ISWA Journal. International Solid Wastes and Public Cleansing Association.
Lua i Stíl Chicago (17ú heag.)Não informado. ISWA Journal. Zurich, Alemanha: International Solid Wastes and Public Cleansing Association, 1978.
Lua MLA (8ú heag.)Não informado. ISWA Journal. International Solid Wastes and Public Cleansing Association, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.