FAIR, G. M. .. (1981). Elements Of Water Supply And Wastewater Disposal Gordon Maskew Fair; John Charles Geyer And Daniel Alexander Okun. John Wiley.
Lua i Stíl Chicago (17ú heag.)FAIR, Gordon Maskew ...[et.al.]. Elements Of Water Supply And Wastewater Disposal Gordon Maskew Fair; John Charles Geyer And Daniel Alexander Okun. John Wiley, 1981.
Lua MLA (8ú heag.)FAIR, Gordon Maskew ...[et.al.]. Elements Of Water Supply And Wastewater Disposal Gordon Maskew Fair; John Charles Geyer And Daniel Alexander Okun. John Wiley, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.