TY  - BOOK
ED  - International Symposium on Land Subsidenced
TI  - Land subsidence=Affaissement du sol
T2  - AIHS publication
PY  - 1969///?]
CY  - [Paris]
PB  - IASH-Unesco
KW  - Mines and mineral resources
KW  - Subsidences (Earth movements)
KW  - Groundwater
N1  - Summaries in French; Includes bibliographical references
ER  -