TY  - BOOK
AU  - Tank,Ronald Warren
TI  - Focus on environmental geology: a colection of case histories and readings from original sources 
PY  - 1976///
CY  - New York
PB  - Oxford University Press
KW  - Natural disasters
KW  - Geology
KW  - Mines and mineral resources
KW  - Conservation of natural resources
N1  - Includes bibliographies
ER  -