TY  - BOOK
AU  - Dela Cruz, Rowena G.
TI  - Introduction to earth science
SN  - 9718210598 Pbk. Np.
AV  - QE 26.2 D45 2004 F CASAT 
PY  - 2004///
CY  - Valenzuela City
PB  - Mutya Publishing House, Inc.
KW  - Earth science
N1  - Includes bibliographical references
ER  -