Social values for ecosystem services (SolVES), version 2.0 : documentation and user manual
Open-file report ;
U.S. Geological Survey open-file report ;
Sherrouse, Benson C., author.
Semmens, Darius J., author.
Geological Survey (U.S.), issuing body.
Geographic Analysis and Monitoring Program (Geological Survey)
by Benson C. Sherrouse and Darius J. Semmens.