1. Reconnaissance of mercury and methylmercury in the St. Croix River and selected tributaries, Minnesota and Wisconsin, July 2000 through October 2001 Author/Creator: Payne, G. A. Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
2. Response of the St. Croix River pools, Wisconsin and Minnesota, to various phosphorus-loading scenarios Author/Creator: Robertson, Dale M. Publication/Creation: Middleton, Wis. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading