| Type |  Book |
| ชื่อเรื่อง | Response to congress on use of decentralized wastewater treatment systems / U.S. Environmental Protection Agency, Office of Water ; Office of Wastewater Management |
| พิมพลักษณ์ | Washington, D.C. : U.S. Environmental Protection Agency, Office of Water, [1997] |
| รูปเล่ม | 1 v. (various pagings) : ill. ; 28 cm |
| หัวเรื่อง | Sewage disposal plants --United States [] |
| | Sewage --Purification --United States [] |
| | Water treatment plants --United States [] |