TY  - BOOK
AU  - Padilla, Michael J.
TI  - Prentice hall science explorer: Grade 7 
SN  - 013053479x
U1  - REF 507.12 P123 2002 
PY  - 2002///
CY  - New Jersey
PB  - Prentice Hall, Inc.
KW  - Science
N1  - Includes glossary and index
ER  -