Wagner, David H.1945 · 2 obras en el catálogoTambién catalogado como: Wagner, David H., 1945- · Wagner, David Henry · David H. Wagner botanist · D.H.WagnerObrasSystematics of Polystichum in western North America, north of MexicoTTaxonomic investigation of the genus Polystichum in western Taxonomic investigation of the genus Polystichum in western North America
TTaxonomic investigation of the genus Polystichum in western Taxonomic investigation of the genus Polystichum in western North America
