TY  - BOOK
AU  - Tayo, Gilma T...(et al.).
TI  - Fundamentals of environmental science
SN  - 9714204585
U1  - Fil. 363.7 F963 
PY  - 2004///
CY  - Manila
PB  - Trinitas Publishing, Inc., 
KW  - Environment
KW  - Ecology
KW  - Environmental protection
KW  - Environment- government policy- Philippines
KW  - Pollution
ER  -