Apps, J. W. (2012). Ringlingville USA: The stupendous story of seven siblings and their stunning circus success. Wisconsin Historical Society Press.
Chicago-Zitierstil (17. Ausg.)Apps, Jerold W. Ringlingville USA: The Stupendous Story of Seven Siblings and Their Stunning Circus Success. Madison, Wis: Wisconsin Historical Society Press, 2012.
MLA-Zitierstil (9. Ausg.)Apps, Jerold W. Ringlingville USA: The Stupendous Story of Seven Siblings and Their Stunning Circus Success. Wisconsin Historical Society Press, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.