PT  - JOURNAL ARTICLE
AU  - Douglas L. Karlen
TI  - Opportunities and Challenges Associated with Watershed-Scale Assessments of Soil and Water Quality
DP  - 1999 Oct 01
TA  - Journal of Soil and Water Conservation
PG  - 626--627
VI  - 54
IP  - 4
4099  - http://www.jswconline.org/content/54/4/626.short
4100  - http://www.jswconline.org/content/54/4/626.full