| Type |  Book |
| ชื่อเรื่อง | Manual : wastewater treatment/disposal for small communities |
| พิมพลักษณ์ | Cincinnati, Ohio : U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Research Information ; Washington, D.C. : Office of Water, Office of Wastewater Enforcement andCompliance, [1992] |
| รูปเล่ม | ix, 110 p. : ill. ; 28 cm |
| หัวเรื่อง | Sewage disposal |
| | Sewage --Purification [] |