Drill monitor with strata strength classification in near-real time /

Bibliographic Details
Corporate Author:	Spokane Research Laboratory (National Institute for Occupational Safety and Health)
Other Authors:	Utt, Walter K.
Format:	Government Document Book
Language:	English
Published:	Spokane, WA : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Spokane Research Laboratory, [2002]
Series:	Report of investigations (National Institute of Occupational Safety and Health) ; 9658.
Subjects:	Mine roof bolting. Drilling and boring machinery.
Online Access:	https://purl.fdlp.gov/GPO/LPS96679

Description
Item Description:	Title from title screen (viewed on July 11, 2008). "July 2002." Electronic resource.
Physical Description:	14 pages : digital, PDF file.
Format:	Mode of access: Internet at the National Institute for Occupational Safety and Health web site. Address as of 7/11/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/ri9658.pdf ; current access available via PURL.