海量图书期刊资源，随时随地畅享阅读乐趣
Land Treatment of Municipal Wastewater in Small CommunitiesYoung, C. Edwin; Epp, Donald J. · American Journal of Agricultural Economics · 1980
The Cost Impact of Joint Treatment of Domestic and Poultry Processing WastewatersDaniel Rossi, C. Edwin Young and Donald J. Epp · Land Economics · 1979