{"id":"000030619","type":"book","title":"Stratigraphy of the woodfordian and altonian drifts of Central northern Illinois. - Urbana-Champaign, IL","container-title":"The quaternary of Illinois ; 14.1968, S. 27-34 : 5 Ill","author":[{"family":"Kempton","given":"John P."}],"issued":{"raw":"1968"}}