http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Plant evolution through amphiploidy and autoploidy, with examples from the Madiinae
vii, 174 pages, 4 unnumbered leaves of plates : illustrations ; 26 cm.
Jens Clausen, David D. Keck, William M. Hiesey.
Carnegie Institution of Washington publication ; no. 564
Experimental studies on the nature of species ; 2