application of sludges and wastewater on agricultural land: a planning and educational guide/
application of sludges and wastewater on agricultural land: a planning and educational guide/
edited by Bernard D. Knezek and Robert H. Miller
- Washington, D.C.: U.S.Environmental Protection Agency, 1978
- iv.,various pagings: ill.
Sewagw irrigation
sewage sludge
Sewage as fertilizer
Sewagw irrigation
sewage sludge
Sewage as fertilizer