Executive Correspondence – Letter to Chairman Principi from Jim Doyle, (Gov WI) Senators Herb Kohl and Russ Feingold, Representatives Given Moore and Paul Ryan, letter, July 30, 2005; (https://digital.library.unt.edu/ark:/67531/metadc19065/m1/1/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .