TY  - BOOK
AU  - Barkan,Joanne
TI  - Rocks, rocks big and small
SN  - 0671686569
PY  - 1990///
CY  - Englewood Cliffs, N.J.
PB  - Silver Press
KW  - Rocks
KW  - Juvenille literature
N2  - An introduction to rocks, their origins, and their evolution
ER  -