A Study of Roof Warning Signals and the Use of Personal Hearing Protection in Underground Coal Mines
Recommended Citation
J. H. Prout et al., "A Study of Roof Warning Signals and the Use of Personal Hearing Protection in Underground Coal Mines," Pennsylvania State University, Jan 1973.
Department(s)
Mining Engineering
Document Type
Technical Report
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1973 Pennsylvania State University, All rights reserved.
Publication Date
01 Jan 1973