TY  - BOOK
AU  - RITTMANN, A
AU  - VINCENT, E A
TI  - VOLCANOES AND THEIR ACTIVITY
U1  - H411 
PY  - 1962///
CY  - NEW YORK
PB  - JOHN WILEY AND SONS
KW  -  VOLCANOES AND THEIR ACTIVITY
KW  - GEOLOGY
ER  -