Conservation Status of Freshwater Gastropods of Canada and the United StatesDOI: info:10.1080/03632415.2013.785396v. 38No. 6Taylor & Francis Inc.247–282
Johnson, Paul D., Bogan, Arthur E., Brown, Kenneth M., Burkhead, Noel M., Cordeiro, James R., Garner, Jeffrey T., Hartfield, Paul D., Lepitzki, Dwayne A. W., Mackie, Gerry L., Pip, Eva, Tarpley, Thomas A., Tiemann, Jeremy S., Whelan, Nathan V., and Strong, Ellen E. 2013. "Conservation Status of Freshwater Gastropods of Canada and the United States." Fisheries, 38, (6) 247–282. https://doi.org/10.1080/03632415.2013.785396.