Gettysburg : Union : the army of the Potomac, 1 July 1863 /
Arnold, James R.
Wiener, Roberta.
Oxford : Osprey Military,
1999.
Includes folded map attached to rear cover.
Includes bibliographical references and index.
United States. Army of the Potomac.
Gettysburg, Battle of, Gettysburg, Pa., 1863.