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1
Minerals Yearbook, 1934, [by] O.E. Kiessling, chief economi..
United States congressional serial set ; serial set no. 9951;House document / 74th Congress, 1st session. House ; no. 48
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2
Minerals Yearbook, 1932-33, [by] O.E. Kiessling, chief econ..
United States congressional serial set ; serial set no. 9762;House document / 73rd Congress, 1st session. House ; no. 104