Não informado. (1981). Water engineering and management. Scranton Gillette Communications.
Lua i Stíl Chicago (17ú heag.)Não informado. Water Engineering and Management. Des Plaines, Ill: Scranton Gillette Communications, 1981.
Lua MLA (8ú heag.)Não informado. Water Engineering and Management. Scranton Gillette Communications, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.