共 50 条
- [41] NATURE OF PHOSPHORUS IN SEWAGE AND SLUDGES INDIAN JOURNAL OF CHEMISTRY, 1963, 1 (12): : 543 - &
- [44] AVAILABILITY OF NITROGEN IN SEWAGE SLUDGES SEWAGE AND INDUSTRIAL WASTES, 1955, 27 (01): : 34 - 39
- [49] GRAVITY THICKENING OF SEWAGE SLUDGES EFFLUENT & WATER TREATMENT JOURNAL, 1972, 12 (11): : 597 - &