TY  - BOOK
AU  - Nel,Louis T.
TI  - The Witwatersrand system in the Klerksdorp-Ventersdorp area: a preliminary report,
T2  - South Africa. Geological Survey, Geological series. Bulletin
AV  - QE325 .A53 no. 1
PY  - 1934///
CY  - Pretoria
PB  - The government printer
KW  - Geology
KW  - South Africa
KW  - Witwatersrand
N1  - At head of title: ... Union of South Africa, Department of mines
ER  -