@article{1357481,
      author = {Longacre, Edward G.,},
      url = {http://library.usi.edu/record/1357481},
      title = {Unsung hero of Gettysburg : the story of Union General  David McMurtrie Gregg /},
      recid = {1357481},
      pages = {1 online resource (xvii, 316 pages, 12 unnumbered pages of  plates) :},
}