Mercer, Ian.
The changing earth / Ian Mercer. - London: Macmillan, c 1986. - 33 p. : ill. ; 28 cm. - Exploration and discovery. .
Includes index.
314 314
0 333 275438
Changing earth.
Geology -- Juvenile literature.
551.12 / M535c
The changing earth / Ian Mercer. - London: Macmillan, c 1986. - 33 p. : ill. ; 28 cm. - Exploration and discovery. .
Includes index.
314 314
0 333 275438
Changing earth.
Geology -- Juvenile literature.
551.12 / M535c