Soil and crop management systems to sustain agricultural production and environmental quality in the northern Great Plains ... annual report [electronic resource].
Imprint
[Washington, D.C.] : U.S. Dept. of Agriculture, Agricultural Research Service
Description based on: 2006; title from title screen (viewed Mar. 12, 2009).
Latest issue consulted: 2008.
Numbering
Report covers fiscal year.
System Details
Mode of access: Internet via the USDA Agricultural Research Service web site. Address as of 3/12/09: http://www.ars.usda.gov/research/projects/projects.htm?ACCN_NO=410760&showpars=true&fy=2006; current access available via PURL.