Title
Spatial and temporal trends of trace metals in surface water, bed sediment, and biota of the upper Clark Fork Basin, Montana, 1985-95 [microform] / by Michele I. Hornberger ... [et al.] ; prepared in cooperation with the U.S. Environmental Protection Agency.
Published
Menlo Park, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Information Services [distributor], [1997]
Physical Description
viii, 84, 6 p. : ill., map ; 28 cm.