Roof bolt spacing.

Bibliographic Details
Corporate Author: United States. Mine Safety and Health Administration (Author)
Format: Government Document eBook
Language:English
Published: [Arlington, Va.] : [U.S. Department of Labor, Mine Safety and Health Administration], 2012.
Series:Procedure instruction letter ; no. I12-V-08.
Subjects:
Online Access:https://purl.fdlp.gov/GPO/gpo37863

Internet

https://purl.fdlp.gov/GPO/gpo37863

Available Online

Holdings details from Available Online
Call Number: L 38.17/2-3:I 12-V-08
 
Call Number Status Get It
L 38.17/2-3:I 12-V-08 Available