TY  - BOOK
AU  - Walle Manfred.
AU  - Jenning Norman.
TI  - Safety and health in small-scale surface mines; A handbook: .Sectoral activities programme working paper (WP.168)
SN  - 9221124754
AV  - TN295 .I62 1963
PY  - 2001///
CY  - Geneva
PB  - ILO Publication
KW  - Mining Safety
ER  -