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Summary

Title:
Sinking methods and costs for a small vertical shaft with steel supports : Keystone mine, Crested Butte, Colorado
Author:
Bolmer, R. L. (Robert L.)
Formats:
   
Editions:
3
Total Holdings:
41
OCLC Work Id:
38756749
Record Link:
http://classify.oclc.org/classify2/ClassifyDemo?owi=38756749
LCC: Class Number Holdings Links
Most Frequent TN295 39 ClassWeb

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