Gerardi, M. H. (2005). Wastewater pathogens. New Jersey: John Wiley & Sons.
Chicago Style aipamenaGerardi, Michael H. Wastewater Pathogens. New Jersey: John Wiley & Sons, 2005.
MLA aipamenaGerardi, Michael H. Wastewater Pathogens. New Jersey: John Wiley & Sons, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.