TY - RPRT TI - Heavy metal contamination of sediments in the upper connecting channels of the Great Lakes AU - S. Jerrine Nichols AU - Bruce A. Manny AU - Donald W. Schloesser AU - Thomas A. Edsall PY - 1991 DO - 10.1007/bf00024763 UR - https://pubs.usgs.gov/publication/1000603 ID - 1000603 ER -