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 Decade: 1920-1929
 Serial/Series Title: Economic paper (Bureau of Mines)
 Collection: Technical Report Archive and Image Library
Summarized data of copper production

Summarized data of copper production

Date: 1928
Creator: Julihn, Carl Edward
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Summarized data of gold production

Summarized data of gold production

Date: 1929
Creator: Ridgway, Robert Henderson
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Summarized data of lead production showing the relation of production in the United States to that of the world

Summarized data of lead production showing the relation of production in the United States to that of the world

Date: 1929
Creator: Smith, Lewis Anderson
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Summarized data of zinc production showing the relation of production in the United States to that of the world

Summarized data of zinc production showing the relation of production in the United States to that of the world

Date: 1929
Creator: Pehrson, Elmer Walter
Description: None
Contributing Partner: UNT Libraries Government Documents Department