Não informado. (1964). Highlights. Water Pollution Control Federation.
Lua i Stíl Chicago (17ú heag.)Não informado. Highlights. Washington: Water Pollution Control Federation, 1964.
Lua MLA (8ú heag.)Não informado. Highlights. Water Pollution Control Federation, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.