Yazar
Fred Merryfield
2 cilt bulundu.
Cilt sonuçları
1945 progress report on pollution of Oregon streams
Fred Merryfield · Engineering Experiment Station, Oregon State System of Higher Education, Oregon State College
62 sayfa · 1945
Water / Analysis / Sewage disposal / Pollution
Industrial and city wastes
Fred Merryfield · Engineering Experiment Station, Oregon State System of Higher Education, Oregon State College
56 sayfa · 1947
Water / Refuse and refuse disposal / Sanitation / Factory and trade waste / Pollution