TY  - BOOK
AU  - Newhall,Christopher G.
AU  - Dzurisin,Daniel
ED  - United States
TI  - Historical unrest at large calderas of the world
U1  - 551.21 
PY  - 1988///.
CY  - Washington: 
PB  - United States Government Printing Office, 
KW  - Volcanism
KW  - Calderas
N1  - Includes bibliographical references
ER  -