411. William J. Cohen and Associates, Inc. Your Water Supply Queen Anne's County, Maryland. Centerville, Md.: Queen Anne's Conservation Association, Inc., 1983.

411. William J. Cohen and Associates, Inc. Your Water Supply Queen Anne's County, Maryland. Centerville, Md.: Queen Anne's Conservation Association, Inc., 1983., Box: 39. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/192320 Accessed September 19, 2024.