Studies of American plants.
Chicago [Ill.] :Field Museum of Natural History,
University Library, University of Illinois Urbana Champaign
University of Illinois Urbana-Champaign
In copyright. Digitized with the permission of the rights holder.
Scanned with the permission of the Field Musuem of Natural History in Chicago, Illinois.
Evidence reported by scanner-christopher-jones for item studiesofamerica00stan on April 5, 2007: no visible notice of copyright; stated date is 1936.