Eicher, p. 550; McPherson, p. 665; Hattaway and Jones, p. 415; Woodworth, p. xiii; Coddington, p. 573; Glatthaar, p. 288; Bearss, p. 202; Carmichael, p. xvii; Goss, Major Thomas (2004. július 1.). „Gettysburg's "Decisive Battle"”. Military Review, 11–16. o. (Hozzáférés: 2009. november 11.)