Taylor, V. E. (2012). The religious pray, the profane swear: Robert Loudon Drummond's survival of Libby and Salisbury prisons during the American Civil War. Davies Group.

Taylor, Victor E. The Religious Pray, the Profane Swear: Robert Loudon Drummond's Survival of Libby and Salisbury Prisons During the American Civil War. Aurora, Colo.: Davies Group, 2012.

Taylor, Victor E. The Religious Pray, the Profane Swear: Robert Loudon Drummond's Survival of Libby and Salisbury Prisons During the American Civil War. Davies Group, 2012.