FAIR, G. M. (1968). Water And Wastewater Engineering Water Purification And Wasterwater Treatment And Disposal Gordon Maskew Fair; John Charles Geyer And Daniel Alexander Okun. John Wiley.
Lua i Stíl Chicago (17ú heag.)FAIR, Gordon Maskew...[et.al.]. Water And Wastewater Engineering Water Purification And Wasterwater Treatment And Disposal Gordon Maskew Fair; John Charles Geyer And Daniel Alexander Okun. John Wiley, 1968.
Lua MLA (8ú heag.)FAIR, Gordon Maskew...[et.al.]. Water And Wastewater Engineering Water Purification And Wasterwater Treatment And Disposal Gordon Maskew Fair; John Charles Geyer And Daniel Alexander Okun. John Wiley, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.