TY  - BOOK
AU  - Evans,I.O.
TI  - Rocks, minerals & gemstones
SN  - 0600375374
AV  - QE 432 E93 1973
PY  - 1972///
CY  - London
PB  - Hamlyn Publishing Group
KW  - Petrology
KW  - Mineralogy
N1  - Includes bibliographical references and index
ER  -