Noyes Robert. (2008). Unit Operations in environmental engineering. JAICO PUBLISHING HOUSE.
Lua i Stíl Chicago (17ú heag.)Noyes Robert. Unit Operations in Environmental Engineering. NEW DELHI: JAICO PUBLISHING HOUSE, 2008.
Lua MLA (9ú heag.)Noyes Robert. Unit Operations in Environmental Engineering. JAICO PUBLISHING HOUSE, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.