http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Desmids from the United States, collected in 1947-1949 by Dr. Hannah Croasdale und Dr. Edwin T. Moul
GROENBLAD, Rolf.- -- Desmids from the United States,collec= -- ted in 1947-1949 by Dr.Hannah Croasda= -- le und Dr.Edwin T.Moul.1956. -- (Societas scientiarum Fennica.Commenta= -- tiones biologicae. 15,12.) -- 1957! -- KB/U.
Societas scientiarum Fennica. Commentationes biologicae 15,12