http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Linear programming's application by economic evaluation
the pilot project, Euphrates Basin, Syrian Arab Republic : (summary and conclusion)
Staff paper series (Texas Agricultural Experiment Station. Department of Agricultural Economics) ; SP-4
Departmental information report (Texas Agricultural Experiment Station. Department of Agricultural Economics) ; DIR 85-1