TY  - BOOK
AU  - Duyanen,Joselito P.
AU  - Ortiz-Anday,Mylene
TI  - Earth and life sciences: for senior high school 
SN  - 9789719805502
U1  - SHS 550 
PY  - 2016///
CY  - Quezon City
PB  - C&E Publishing Inc.
N1  - Includes bibliographical index; 500-599
ER  -