Qasim, S. R. (1999). Wastewater treatment plants: Planning, design, and operation (Second edition.). CRC Press.
Lua i Stíl Chicago (17ú heag.)Qasim, Syed R. Wastewater Treatment Plants: Planning, Design, and Operation. Second edition. Boca Raton: CRC Press, 1999.
Lua MLA (8ú heag.)Qasim, Syed R. Wastewater Treatment Plants: Planning, Design, and Operation. Second edition. CRC Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.