TY  - SER
AU  - Doctor, Mario E, Jr.
TI  - Polusyon, panganib saa tao at hayop
U1  - Per. 370.7’051 M689 2004-2006 
PY  - 2006///
CY  - Manila
PB  - The Grade School, Inc.
KW  - Polusyon
KW  - Pollution
KW  - Health hazards
ER  -