Barkan, Joanne.
Hard as a rock / [book] - Englewood Cliffs, NJ : Silver Press, c1989. - p. cm. - First facts . - First facts (Englewood Cliffs, N.J.) .
An introduction to rocks, their origins, and their evolution.
0671686569 (lib. bdg.) : $8.98 0671686607 : $4.95
89039192 /AC
Rocks--Juvenile literature.
Rocks.
QE432.2. / .B37 1989
552
Hard as a rock / [book] - Englewood Cliffs, NJ : Silver Press, c1989. - p. cm. - First facts . - First facts (Englewood Cliffs, N.J.) .
An introduction to rocks, their origins, and their evolution.
0671686569 (lib. bdg.) : $8.98 0671686607 : $4.95
89039192 /AC
Rocks--Juvenile literature.
Rocks.
QE432.2. / .B37 1989
552