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Displaying 1-2 of 2 results for author "Pereira, Wilfred E."
Geochemical studies of anthropogenic and natural organic compounds at the Sonoma Baylands Wetland Demonstration Project site and adjacent marshlands, Sonoma County, California [microform] / by Wilfred E. Pereira ... [et al.].
- Text
- Menlo Park, Calif. : U.S. Geological Survey ; Denver, Colo. : Information Services [distributor], 1998.
- 1998
Concentrations and mass transport of pesticides and organic contaminants in the Mississippi River and some of its tributaries, 1987-89 and 1991-92 [microform] / by Wilfred E. Pereira ... [et al.].
- Text
- Denver, Colo. : U.S. Geological Survey : Earth Science Information Center, Open-File Reports Section [distributor], 1995.
- 1995
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