Hallin, S. (1998). Dynamics of denitrifying populations in activated sludge processes with nitrogen removal. Swedish University of Agricultural Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hallin, Sara. Dynamics of Denitrifying Populations in Activated Sludge Processes with Nitrogen Removal. Uppsala: Swedish University of Agricultural Sciences, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)Hallin, Sara. Dynamics of Denitrifying Populations in Activated Sludge Processes with Nitrogen Removal. Swedish University of Agricultural Sciences, 1998.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.