TY  - BOOK
AU  - Leh, Francis K V
AU  - Lak, Richard K C
TI  - Environment and pollution: sources, health effects manitoring and control
SN  - 0-398-03030-8
U1  - 614.7 21st
CY  - Springfield
PB  - Charles C Thomas
KW  - Environmental health; Pollution
ER  -