TY  - BOOK
AU  - Jarumayan, Germana A. 
AU  - Sadili, Milagros V. 
TI  - The changing earth
SN  - 9715740685
U1  - Fil 550 J297 2003 
PY  - 2003///.
CY  - Quezon City
PB  - Katha Pub.
KW  - Earth sciences.
N1  - Includes bibliographical references
ER  -