4-Unit Townhouse, Duplexes, and Custom Home for Alan & Kathy Fries for Skyline Heights Subdivision and Plans for the Highland Park Valley Subdivision, 1979 - 1981, tube: 258. Charles Marshall collection, RH AD 8. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/227391 Accessed June 23, 2024.