TY  - BOOK
AU  - Braganza, Maria Chona Sulit -
TI  - Earth science
SN  - 971-23-3938-6
AV  - FIL QE 26.3 
CY  - Manila
KW  - Earth sciences -- Study and teaching
KW  - Earth sciences
KW  - Earth sciences -- Textbooks.
N1  - Includes bibliographical references and index
ER  -