TY  - BOOK
AU  - Williams,Howel,b.1898
AU  - McBirney,Alexander R.
TI  - Volcanology
SN  - 0877353212
PY  - 1979///
CY  - Cooper, San Francisco, Calif.
PB  - Freeman
KW  - Volcanoes
KW  - Volcanic ash, tuff, etc
KW  - Volcanism
N1  - Includes index; Bibliography: p.  367 -384
ER  -