TY  - BOOK
AU  - MURCHISON, Roderick Impey
TI  - On the earlier volcanic rocks of the papal states and the adjacent parts of Italy
U1  - 201 
PB  - London
N1  - Offprint from Quarterly journal of the Geological Society of London, v.6, 1850.  Bound with the Author's On the geological structure of the Alps... [1849]
ER  -