{"id":"000030636","type":"book","title":"Late Wisconsin chronology of the Lake Michigan Basin correlated with pollen studies. - Boulder, CO","container-title":"Bulletin of the Geological Society of America ; 67.1956, S. 271-288 : 6 Ill. ; 4 Tab","author":[{"family":"Zumberge","given":"James H."}],"issued":{"raw":"1956"}}