TY  - BOOK
AU  - Cotton,C.A.
TI  - Volcanoes : as landscape forms 
U1  - 551.21 COT  
PY  - 1969///.
CY  - New York : 
PB  - Hafner Publishing Company, Inc., 
KW  - Lava
KW  - Physical geography
KW  - Volcanoes--Landforms
ER  -