TY  - GEN
AU  - Pfafflin, James R. 
AU  - Ziegler, Edward N. 
TI  - Encyclopedia of environmental science and engineering
U1  - 628.03 
PY  - 2006///
CY  - Boca Raton
PB  - CRC Press
N1  - A-L,7538 v.1; M-Z,7539 v.2
ER  -