TY  - BOOK
AU  - Santiago,Florenda I.
TI  - Environmental science: a shared responsibility towards the earth 
SN  - 971232026X
AV  - TD 157.E58 2008 F  
PY  - 2008///
CY  - Manila
PB  - Rex Book Store
KW  - Environmental sciences
KW  - Human ecology
KW  - Study and teaching
N1  - Includes bibliographical references and index
ER  -