Pell, M. (1991). Microbiology and nitrogen transformations in sand-filter systems for treatment of household septic-tank effluents.
Chicago-Zitierstil (17. Ausg.)Pell, Mikael. Microbiology and Nitrogen Transformations in Sand-filter Systems for Treatment of Household Septic-tank Effluents. Uppsala, 1991.
MLA-Zitierstil (9. Ausg.)Pell, Mikael. Microbiology and Nitrogen Transformations in Sand-filter Systems for Treatment of Household Septic-tank Effluents. 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.