Tillage practices in the conterminous United States, 1989-2004--datasets aggregated by watershed / by Nancy T. Baker ; prepared in cooperation with the Conservation Technology Information Center.
| Author/creator | Baker, Nancy Tucker, 1957- |
| Other author | National Water-Quality Assessment Program (U.S.) |
| Other author | Conservation Technology Information Center. |
| Other author | Geological Survey (U.S.) |
| Format | Electronic |
| Publication Info | Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 2011. |
| Description | 1 online resource (22 unnumbered pages). |
| Supplemental Content | http://purl.fdlp.gov/GPO/gpo5939 |
| Subjects |
| Series | Data series ; 573 Data series (Geological Survey (U.S.)) 573. ^A591614 |
| General note | Title from title screen (viewed Apr. 7, 2011). |
| General note | "National Water-Quality Assessment Program." |
| Bibliography note | Includes bibliographical references (p. 12). |
| GPO item number | 0621-K (online) |
| Govt. docs number | I 19.121:573 |