TY  - JOUR
TI  - Open-file report / U.S. Geological Survey
CY  - [Reston, Va.]
PB  - [Verlag nicht ermittelbar]
PY  - 1930
N1  - Automatically generated record. (Updated: 2025-01-02)
KW  - Geology (ASJC)
UR  - https://repository.gsi.de/record/82482
ER  -