Miller, R. C., & Mumper, J. I. (1904). Historic views of Gettysburg: Illustrations in half-tone of all the monuments, important views and historic places on the Gettysburg battlefield .. [Gettysburg, Pa.]: J.I. Mumper and R.C. Miller.

Miller, Robert Clinton, and J. I. Mumper. Historic Views of Gettysburg: Illustrations in Half-tone of All the Monuments, Important Views and Historic Places On the Gettysburg Battlefield .. [Gettysburg, Pa.]: J.I. Mumper and R.C. Miller, 1904.

Miller, Robert Clinton, and J. I. Mumper. Historic Views of Gettysburg: Illustrations in Half-tone of All the Monuments, Important Views and Historic Places On the Gettysburg Battlefield .. [Gettysburg, Pa.]: J.I. Mumper and R.C. Miller, 1904.