TY  - BOOK
AU  - Pough,Frederick H.
AU  - Scovil,Jeffrey
TI  - A field guide to rocks and minerals
T2  - The Peterson field guide series
SN  - 0395727782
AV  - QE367.2 P67 1996
PY  - 1996///
CY  - Boston
PB  - H. Mifflin
KW  - Rocas
KW  - Mineralogía determinativa
N1  - "Sponsored by the National Audubon Society, The National Wildlife Federation, and the Roger Tory Peterson Institute"
ER  -