TY  - BOOK
AU  - Apple, Peter W. Uitterdijk 
AU  - LaBerge, Gene L.
TI  - Precambrian iron - formations
U1  - 553.3 DDC 21
PY  - 1987///
CY  - Athens
PB  - Theophrastus publications S.A.
KW  - Geology
KW  - Precambrian geologic period
KW  - Stratigraphic geology
KW  - Iron ores
ER  -