Blasting requirements-- surface coal
coal entry level training : student text material and instructor's guide
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Publication
1994 - U.S. Department of Labor, Mine Safety and Health Administration, National Mine Health and Safety Academy, Washington, D.C.?, District of Columbia
Language
English
Word Count
0 words, Guess
Page Count
0 pages
Identifiers
- OCLC Control Number30310298
- Open LibraryOL45379181M
Subjects
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