Geological Survey Research 1960 . Professional Paper No. 400, part A and part B. U.S. Geological Survey, Washington, D.C., 1960 (order from Supt. of Documents, GPO, Washington 25). Part A, 142 pp., illus., $1; part B, 523 pp., illus., $4.25.

Science ◽  
1961 ◽  
Vol 133 (3449) ◽  
pp. 324-324
Author(s):  
Julian D. Barksdale
2009 ◽  
Vol 2009 (3) ◽  
pp. 762-764
Author(s):  
Edward T. Furlong ◽  
James L. Gray ◽  
Patrick J. Phillips ◽  
Tracy J. Yager ◽  
Dana W. Kolpin

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