Viessman, W., & Hammer, M. J. (1998). Water supply and pollution control (6th.ed.). Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Viessman, Warren, agus Mark J. Hammer. Water Supply and Pollution Control. 6th.ed. Menlo Park: Addison-Wesley, 1998.
Lua MLA (9ú heag.)Viessman, Warren, agus Mark J. Hammer. Water Supply and Pollution Control. 6th.ed. Addison-Wesley, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.