Russell W. Graham ... [and others] ; and contributions by James E. King, Steven R. Ahler, Frances B. King ; compiled by Bonnie W. Styles and Mary Ann Graham
E. Donald McKay III ... [and others] ; 51st Midwest Friends of the Pleistocene Field Trip, an ISGS centennial field trip, May 13-15, 2005 ; sponsored by Illinois State Geological Survey
Date
[2005]
Series
Illinois State Geological Survey open file series ; 2005-7