79. Delaware State Planning Office. Annexation Study: Dover, Delaware. Dover, Del.: Delaware State Planning Office, 1969. S4.2/No. 2

79. Delaware State Planning Office. Annexation Study: Dover, Delaware. Dover, Del.: Delaware State Planning Office, 1969. S4.2/No. 2, Box: 23. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/191647 Accessed September 19, 2024.