Hallin, S. (1998). Dynamics of denitrifying populations in activated sludge processes with nitrogen removal. Swedish University of Agricultural Sciences.
Lua i Stíl Chicago (17ú heag.)Hallin, Sara. Dynamics of Denitrifying Populations in Activated Sludge Processes with Nitrogen Removal. Uppsala: Swedish University of Agricultural Sciences, 1998.
Lua MLA (8ú heag.)Hallin, Sara. Dynamics of Denitrifying Populations in Activated Sludge Processes with Nitrogen Removal. Swedish University of Agricultural Sciences, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.