University of Maryland -- University of Maryland, College Park (UMCP), Human-Computer Interaction Laboratory; Johnson Controls, Inc., Correspondence, information, January 1991-February 1994

University of Maryland -- University of Maryland, College Park (UMCP), Human-Computer Interaction Laboratory; Johnson Controls, Inc., Correspondence, information, January 1991-February 1994, 1.80.1, Box: 80, Folder: 1.0. Ben Shneiderman papers, 0284-UA. Special Collections and University Archives. https://archives.lib.umd.edu//repositories/2/archival_objects/474723 Accessed February 26, 2025.