{"id":"000027238","type":"book","title":"Bering land bridge: evidence of spruce in Late-Wisconsin times.- Washington, D.C","container-title":"Science; 156.1967, no. 3773, S. 380-383: 2 Ill.; 1 Kt.; 2 Tab","author":[{"family":"Colinvaux","given":"Paul A."}],"issued":{"raw":"1967"}}