TY  - SER
TI  - Geologie en mijnbouw
SN  - 0016-7746
PY  - 1931///
CY  - Amsterdam
PB  - Royal Netherlands Geology and Mining Society
KW  - Geology
KW  - Periodicals
N1  - UKM: v.49 (1970)-. Martinus, Netherlands
ER  -