In the course of the American Civil War, the Unionists and
Confederates fight an indecisive battle at Perryville, Kentucky.
Citation:
Editors. "Indecisive battle of Perryville in American Civil War".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18444, accessed 25 May 2013.]