TY  - BOOK
AU  - Curwen,H.C.
TI  - An illustrated elemantary classification of minerals, rocks and fossils
PY  - 1965///
CY  - Oxford
PB  - Pergamon Press
KW  - Petrografía
KW  - Fósil
KW  - Roca
KW  - Libro
ER  -