sub:Provenance {
sub:Assertion prov:wasDerivedFrom sub:Study .
sub:Study dcterms:bibliographicCitation "Swiderek, P.K., A.S. Johnson, P.E. Hale, and R.L. Joyner. 1988. Production, management, and waterfowl use of sea purslane, Gulf Coast muskgrass, and widgeongrass in brackish impoundments. In Waterfowl in winter (ed MW Weller), pp. 441-457. Minneapolis, MN: University of Minnesota Press." .
}