Não informado. (1926). Water works engineering. [s.n.].
Lua i Stíl Chicago (17ú heag.)Não informado. Water Works Engineering. New York: [s.n.], 1926.
Lua MLA (8ú heag.)Não informado. Water Works Engineering. [s.n.], 1926.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.