Não informado. (1993). Solid waste technologies. Adams/Green Industry.
Lua i Stíl Chicago (17ú heag.)Não informado. Solid Waste Technologies. Atlanta, Ga: Adams/Green Industry, 1993.
Lua MLA (8ú heag.)Não informado. Solid Waste Technologies. Adams/Green Industry, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.