TY  - BOOK
AU  - Vigon, B.W.
AU  - Craig, R.A., coaut.Frazier, N.A., coaut.
TI  - souces and behavior of heavy metals in wastewater and sludg-es / by B.W. Vigon, R.A. Craig, and N.A. Frazier
CY  - Washington, D.C. : Environmental Protection Agency
ER  -