Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.
Johnson, Charles J. & Lumpkin, James J.Traction Gang Plow,
patent,
May 21, 1907;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth511612/:
accessed July 17, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.;
crediting UNT Libraries Government Documents Department.