TY  - BOOK
AU  - Salandanan,Gloria G.
TI  - Earth science: textbook 
U1  - Fil. 550 S161 1988 
PY  - 1988///
CY  - Quezon CIty
PB  - Phoenix Publishing House, Inc.
KW  - Earth Science
N1  - Includes appendices, bibliographical references, glossary and index
ER  -