Berg, G. (1973). Removal of viruses from sewage, effluents, and waters: 2. Present and future trends.
Chicago-stil citatBerg, Gerald. Removal of Viruses From Sewage, Effluents, and Waters: 2. Present and Future Trends. 1973.
MLA-referensBerg, Gerald. Removal of Viruses From Sewage, Effluents, and Waters: 2. Present and Future Trends. 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.