TY  - BOOK
AU  - Atwater, Mary
ED  - Macmillan/McGraw-Hill School Publishing Company
TI  - Changing earth Grade
T2  - Macmillan/McGraw-Hill science, unit 23
SN  - 0022742735
AV  - QE28 C436 1993
CY  - New York : Macmillan/McGraw-Hill School Pub. Co. , c1995
KW  - Earth sciences
KW  - Study and teaching (Elementary)
KW  - Geology
KW  - Science
ER  -