TY  - BOOK
AU  - Pearl,Richard M.
TI  - How to know the minerals and rocks
U1  - 549.14* 
PY  - 1955///]
CY  - New York
PB  - McGraw-Hill
KW  - Mineralogy, Determinative
KW  - Rocks
KW  - Identification
KW  - Minerais E Rochas
KW  - Mineralogia
ER  -