Time required in developing selected Arizona copper mines /

Bibliographic Details
Main Author:	Burgin, Lorraine B.
Corporate Author:	United States. Bureau of Mines
Format:	Government Document Book
Language:	English
Series:	Information circular (United States. Bureau of Mines) ; 8702.
Subjects:	Copper mines and mining > Arizona.

Description
Item Description:	Chiefly tables.
Physical Description:	2 unnumbered pages, ii, 144 pages : illustrations, maps ; 26 cm.
Bibliography:	Includes bibliographies.