TY  - BOOK
AU  - Pearl,Richard M.
TI  - Rocks and minerals
T2  - Everyday handbook series,
U1  - 549 23
PY  - 1956/// [Printing1961]
CY  - New York
PB  - Barnes & Noble1
KW  - Mineralogy
KW  - Rocks
N1  - Includes bibliography
ER  -