1. A Sand County almanac with essays from Round River;Leopold,1980
2. Paleoclimates, paleovegetation, and paleofloras of North America north of Mexico during the late Quaternary, Ch. 4;Delcourt,2003
3. Broad gene pools required for disturbed lands;Stutz,1982
4. Evolution of shrubs;Stutz,1989
5. An evolutionary perspective on native plants;Gould,2002