TY - BOOK AU - Sajwan, Kenneth S. Ed. Alva, Ashok K. jt.ed. TI - Biogeochemistry of trace elements in coal and coal combustion byproducts SN - 0306462885 U1 - 621.312132 PY - 1999/// CY - New York PB - Kluwer Academic KW - Trace elements-Environmental aspects-Congresses KW - Coal-Cumbustion-Byproducts-Environmental aspects-Congresses ER -