1. Field Guide, American Quaternary Association;BAKER R.G.,1986
2. Three late‐glacial pollen and plant Macrofossil assemblages from Iowa
3. A full-glacial biota from southeastern Iowa, USA
4. BAKER, R.G., BETTIS, A.E. III., RHODES, R.S. II. and HALLBERG, G.R. Wisconsinan ice‐marginal biotic environments in Iowa. American Quaternary Association Ninth Biennial Meeting. Urbana. pp.116University of Illinois. (abstract)