Instructions, roof fall entrapment

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Subjects: Mine accidents--United States
Mine rescue work--United States--Problems, exercises, etc
Formats: Print
Material Type: Books
Language: English
Audience: Unspecified
Published: [Washington, D.C.? : U.S. Dept. of the Interior, Bureau of Mines, 1989?]
Physical Description: 14 p. : ill. ; 28 cm
Alternate Titles: Roof fall entapment
Additional Authors: United States. Bureau of Mines
Notes: Running title: Roof fall entrapment
Shipping list no.: 89-318-P
OCLC Number: 19836711