TY  - BOOK
ED  - United States.
TI  - Polymeric materials for treatment and recovery of petrochemical wastes
U1  -  637.356 
PY  - 0000///[n.d.]
CY  - Washington
PB  - U.S. Government Printing Office
KW  - Petroleum industry and trade
KW  - By-products
KW  - Sewage
KW  - Purification
KW  - Reverse osmosis process
KW  - Glycerin
ER  -