TY  - BOOK
AU  - Lucas, randolph
TI  - The illustrated Encyclopedia of Minerals & Rocks
SN  - 0706405188
AV  - REF QE 363.2 .K68 1977 
PY  - 1977///
CY  - Czechoslovakia
PB  - Octopus Books Limited
N1  - include index
ER  -