共 7 条
- [1] BURBANCK WD, 1967, J PROTOZOOL, V4, P793
- [2] HENDERSON C, 1959, W603 PUBL HLTH SERV
- [3] HYNES HBN, 1960, BIOLOGY POLLUTED WAT
- [4] LLOYD R, 1963, J I SEWER PURIF, V2, P167
- [5] Mckee J.E., 1963, WATER QUALITY CRITER
- [7] 1965, STANDARD METHODS EXA