Brady, M. (2003). Managing Agriculture and Water Quality: Four essays on the control of large-scale nitrogen pollution.
Chicago-referens (17:e uppl.)Brady, Mark. Managing Agriculture and Water Quality: Four Essays on the Control of Large-scale Nitrogen Pollution. 2003.
MLA-referens (8:e uppl.)Brady, Mark. Managing Agriculture and Water Quality: Four Essays on the Control of Large-scale Nitrogen Pollution. 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.