TY  - BOOK
AU  - Velz,Clarence J.
TI  - Applied Stream Sanitation
SN  - 0471905259 (hardcover)
PY  - 1970///
CY  - [S.l.]
PB  - Wiley
KW  - Stream self-purification	
UR  - http://www.amazon.com/exec/obidos/ASIN/0471905259/chopaconline-20
ER  -