Work Study In Mines /
National Coal Board
- London : National Coal Board, 1979
- 275 p. : ill., forms ; 22 cm
Includes Appendix 1 ( p. 270 - 274 )
--Great Britain--Mine management
--Work measurement
622.334 WOR
Includes Appendix 1 ( p. 270 - 274 )
--Great Britain--Mine management
--Work measurement
622.334 WOR