University of Maryland Libraries Hornbake Library 4130 Campus Drive
WPA Project No. 713-2-46 F.A. and 713-2-104 F.A., Construction of buildings and appurtenances for New Ordinance School, Aberdeen Proving Ground, Maryland, May 4, 1939. Special Collections and University Archives. https://archives.lib.umd.edu//repositories/2/digital_objects/19090 Accessed December 02, 2020.